diff --git a/.gitignore b/.gitignore
index 413c71c..09cd91c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,5 @@ app/static/frequency/frequency.p
 app/static/wordfreqapp.db
 app/static/donate-the-author.jpg
 app/static/donate-the-author-hidden.jpg
+
+**/__pycache__
\ No newline at end of file
diff --git a/app/cloze/__init__.py b/app/cloze/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/app/cloze/create_clozeTest.py b/app/cloze/create_clozeTest.py
new file mode 100644
index 0000000..fb6021e
--- /dev/null
+++ b/app/cloze/create_clozeTest.py
@@ -0,0 +1,127 @@
+import random
+import sqlite3
+import re
+from nltk.corpus import wordnet as wn
+
+
+class Essay:
+    def __init__(self):
+        self._article_id = 0
+        self._essay = None
+        self._difficulty = None
+        self._answers = None
+        self._questions = None
+        pass
+
+    @property
+    def article_id(self):
+        pass
+
+    @article_id.setter
+    def article_id(self, article_id):
+        self._article_id = article_id
+        self.find_essay_in_database(self._article_id)
+
+    # 获取数据库中的文章和等级
+    def find_essay_in_database(self, id):
+        try:
+            # 连接数据库
+            conn = sqlite3.connect("static/wordfreqapp.db")
+            # 创建游标
+            cursor = conn.cursor()
+            cursor.execute(
+                "select text,level from article where article_id = "+str(id))
+            results = cursor.fetchall()
+            conn.commit()
+            cursor.close()
+            conn.close()
+            self._essay = results[0][0]
+            self._difficulty = results[0][1]
+            return results
+        except Exception as e:
+            print(e)
+
+    # 将文章分割成单词列表
+    def split_essay_to_word(self):
+        article = "".join(self._essay)
+        words = re.split(r"\b[\.,\s\n\r\n\$\']+?\b", article)
+        word_list = [word.lower() for word in words]
+        return word_list
+
+    # 从数据库中查找和文章难度相同的单词
+    def find_same_difficulty_words(self):
+        result_list = []
+        try:
+            # 连接数据库
+            conn = sqlite3.connect("static/wordfreqapp.db")
+            # 创建游标
+            cursor = conn.cursor()
+            cursor.execute(
+                "select word from words where difficulty = " + str(self._difficulty))
+            results = cursor.fetchall()
+            conn.commit()
+            cursor.close()
+            conn.close()
+            for result in results:
+                for res in result:
+                    result_list.append(res)
+            return result_list
+        except Exception as e:
+            print(e)
+
+    # 获取单词的近义词
+    def get_word_synsets(self, word):
+        synsets_set = wn.synsets(word)
+        synset_list = []
+        for synset in synsets_set:
+            synset_list.append(synset.name().split(".")[0])
+        return synset_list
+
+    # 生成完形填空
+    def create_clozeTest(self, essay):
+        essay.article_id = self._article_id
+        word = []  # 存放文章中含有的与文章难度相同的单词
+        answers = []  # 存放正确答案
+        questions = []  # 存放题目
+
+        database_words = essay.find_same_difficulty_words()
+        essay_words = essay.split_essay_to_word()
+        # 寻找文章中与文章难度相同的单词存入word[]中
+        for essay_word in essay_words:
+            if database_words.__contains__(essay_word) and essay_word not in word:
+                word.append(essay_word)
+        # 给出因文章内容太少的问题导致题目少于10个的情况
+        if len(word) <= 10:
+            answers = word
+        else:  # 将找出来的单词作为正确答案存入answers[]中
+            for i in range(0, 10):
+                w = word[random.randint(0, len(word) - 1)]
+                if not answers.__contains__(w):
+                    answers.append(w)
+
+        self._answers = answers
+        # 用题号来替换文章中的单词
+        No = 1
+        for answer in answers:
+            questions.append(list(answer.split(",")))
+            self._essay = self._essay.replace(answer, '('+str(No)+')____', 1)
+            No += 1
+        # 生成每道题目的四个选项
+        for question in questions:
+            synset = list(set(essay.get_word_synsets(question[0])))
+            if len(synset) == 0 or len(synset) == 1:
+                question.append(word[random.randint(0, len(word) - 1)])
+            else:
+                syn = synset[random.randint(0, len(synset) - 1)]
+                while (syn == question[0]):
+                    syn = synset[random.randint(0, len(synset) - 1)]
+                question.append(syn)
+
+            while len(question) < 4:
+                add_word = word[random.randint(0, len(word) - 1)]
+                while question.__contains__(add_word):
+                    add_word = word[random.randint(0, len(word) - 1)]
+                question.append(add_word)
+            random.shuffle(question)
+
+        self._questions = questions
\ No newline at end of file
diff --git a/app/main.py b/app/main.py
index d903bf4..bc3ce1d 100644
--- a/app/main.py
+++ b/app/main.py
@@ -11,6 +11,7 @@ from Article import *
 import Yaml
 from user_service import userService
 from account_service import accountService
+from cloze.create_clozeTest import Essay
 app = Flask(__name__)
 app.secret_key = 'lunch.time!'
 
@@ -68,9 +69,10 @@ def mark_word():
         for word in request.form.getlist('marked'):
             lst.append((word, 1))
         d = pickle_idea.merge_frequency(lst, lst_history)
-        pickle_idea.save_frequency_to_pickle(d, path_prefix + 'static/frequency/frequency.p')
+        pickle_idea.save_frequency_to_pickle(
+            d, path_prefix + 'static/frequency/frequency.p')
         return redirect(url_for('mainpage'))
-    else: # 不回应GET请求
+    else:  # 不回应GET请求
         return 'Under construction'
 
 
@@ -88,7 +90,8 @@ def mainpage():
         d = load_freq_history(path_prefix + 'static/frequency/frequency.p')
         lst_history = pickle_idea.dict2lst(d)
         d = pickle_idea.merge_frequency(lst, lst_history)
-        pickle_idea.save_frequency_to_pickle(d, path_prefix + 'static/frequency/frequency.p')
+        pickle_idea.save_frequency_to_pickle(
+            d, path_prefix + 'static/frequency/frequency.p')
         return render_template('mainpage_post.html', lst=lst, yml=Yaml.yml)
 
     elif request.method == 'GET':  # when we load a html page
@@ -101,14 +104,38 @@ def mainpage():
                                d_len=d_len, lst=lst, yml=Yaml.yml)
 
 
+essay = Essay()
+
+
+@app.route('/gocloze', methods=['GET', 'POST'])
+def go_ClozeTest():
+    '''
+    根据GET或POST方法来分别返回答题前后的完型填空界面
+    :return: 完型填空界面
+    '''
+    if request.method == 'GET':
+        essay._article_id += 1
+        essay.create_clozeTest(essay)
+
+        return render_template('clozeTest.html', essay=essay, answers=None)
+    if request.method == 'POST':
+        score = 0
+        # submit_answers = []
+        questions = essay._questions
+        answers = essay._answers
+
+        for i in range(0, len(answers)):
+            ans = request.form.get('answer' + str(i+1))
+            if ans:
+                ans = ans.upper()
+                no = ord(ans)-ord('A')
+                if questions[i][no] == answers[i]:
+                    score += 10
+        return render_template('clozeTest.html', essay=essay, msg=f'你的分数是: {score}', answers=answers)
+
 
 if __name__ == '__main__':
     '''
     运行程序
     '''
-    # app.secret_key = os.urandom(16)
-    # app.run(debug=False, port='6000')
     app.run(debug=True)
-    # app.run(debug=True, port='6000')
-    # app.run(host='0.0.0.0', debug=True, port='6000')
-    # print(mod5('123'))
diff --git a/app/templates/clozeTest.html b/app/templates/clozeTest.html
new file mode 100644
index 0000000..52a4f44
--- /dev/null
+++ b/app/templates/clozeTest.html
@@ -0,0 +1,56 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>clozeTest</title>
+    <style>
+        pre {
+            font-size: large;
+            white-space: pre-wrap; /*css-3*/
+            background-color: aliceblue;
+            word-wrap: break-word; /*InternetExplorer5.5+*/
+        }
+        #button{
+            text-align: center;
+        }
+
+        #content{
+            background-color: azure;
+            margin: auto;
+        }
+    </style>
+    
+</head>
+<body>
+    
+<p style="color: red; font-size: 20px">{{ msg }}</p>
+{% set ascll = ['A','B','C','D'] %}
+<pre>{{ essay._essay }}</pre>
+<form action="/gocloze" id="button" method="GET">
+    <input type="submit" style="background-color: aquamarine; width: 100px; height: 40px" value="下一题">
+</form>
+<form action="/" id="button">
+    <input type="submit" style="background-color: aquamarine; width: 100px; height: 40px" value="返回">
+</form>
+<p style="color: red; font-size: 20px">请输入abcd或其大写</p>
+<p style="color: red; font-size: 20px">tip:异常输入会被自动清除</p>
+<form id="content" action="/gocloze" method="POST" >
+    <tr>
+
+        {% for question in essay._questions %}
+            <td>
+                <p><input type="text" onkeyup="this.value=this.value.replace(/[^a-dA-D]/g,'')" maxlength="1" name="answer{{ loop.index }}" placeholder="请输入答案" >
+                    {{ loop.index }}.
+                    {% for q in question %}
+                        {{ ascll[loop.index0] }}.
+                        {{ q }}
+                    {% endfor %}
+                </p>
+            <p style="color: red">{{ answers[loop.index0] }}</p>
+            </td>
+        {% endfor %}
+    <p><input type="submit" value="提交" style="background-color: cornsilk; width: 100px; height: 40px"></p>
+    </tr>
+</form>
+</body>
+</html>
\ No newline at end of file
diff --git a/app/templates/userpage_get.html b/app/templates/userpage_get.html
index 19542c1..bbf2107 100644
--- a/app/templates/userpage_get.html
+++ b/app/templates/userpage_get.html
@@ -32,6 +32,10 @@
     <p><b>阅读文章并回答问题</b></p>
     <div id="text-content">{{ today_article|safe }}</div>
 
+    <form action="/gocloze" method="GET">
+        <input type="submit" style.display="block" value="去做完型填空">
+    </form>
+
     <input type="checkbox" onclick="ChangeHighlight()" checked/>生词高亮
     <input type="checkbox" onclick="onReadClick()" checked/>大声朗读
     <input type="checkbox" onclick="onChooseClick()" checked/>划词入库
diff --git a/requirements.txt b/requirements.txt
index 2746a3b..fcb5910 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
-Flask==1.1.2
+Flask==2.1.2
 selenium==3.141.0
 PyYAML~=6.0
+nltk==3.7
\ No newline at end of file