1 A, an or one？ a, an还是one？ 5
2 When do I use capital letters? 什么情况下单词首字母要大写？ 6
3 Do I need am / is / are in this sentence? am / is / are 的用法 7
Test 1 8
4 Singular or plural? 单数还是复数？ 10
5 Plural or uncountable? 名词的复数形式和不可数名词 11
6 When do I use of and when do I use an apostrophe? of 和撇号的用法 12
Test 2 13
7 What’s the negative form of have？ have的否定形式 15
8 Present simple or present continuous? 一般现在时还是现在进行时？ 16
9 Which verbs don’t have a continuous form? 哪些动词没有进行时形式？ 17
Test 3 18
10 Regular or irregular past simple forms? 动词的一般过去时形式 20
11 How do I form the past simple negative? 动词一般过去时的否定形式 21
12 Past simple or past continuous? 一般过去时还是过去进行时？ 22
Test 4 23
13 How do I use personal pronouns? 人称代词的用法 25
14 How do I use reflexives? 反身代词的用法 26
15 Many, much or a lot of? many, much还是a lot of? 27
Test 5 28
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