When do I use full stops and when do I use commas 句號(hào)和逗號(hào)的用法 When must I use I? I的用法 When can I use an apostrophe before s ('s) ? 什么時(shí)候在-s前面加撇號(hào)? Test 1 Do I need a in this sentence? 這句話中需要a嗎? A or the? A還是the? Do I need the in this sentence? 這句話中需要the嗎? Test 2 How do I talk about age? 如何表達(dá)年齡? How do I say the time and the date? 如何表達(dá)時(shí)間和日期? When do I add s to verbs? 動(dòng)詞的一般現(xiàn)在時(shí)形式 Test 3 When do I add ed to verbs 動(dòng)詞的一般過(guò)去時(shí)形式 I did or I have done? 一般過(guò)去時(shí)和現(xiàn)在完成時(shí) For and since? for和since的用法 Test 4 When do I use I am doing? 現(xiàn)在進(jìn)行時(shí) When do I use I will? will的用法 How do I form questions? 疑問(wèn)句是如何形成的? Test 5 There and it/theyThere和it/they Plural and uncountable nouns 名詞的復(fù)數(shù)形式和不可數(shù)名詞When do I use much and many? much和many的用法 Test 6 Like,would like and want? Like, would like和want? Do or to do? Do還是to do? When do I use doing after verbs? 哪些動(dòng)詞后面接動(dòng)詞的-ing形式? Test 7 ther,others,another and each otherOther,others,another和each other One and onesOne和ones Old,older,the oldestOld,older,the oldest Test 8 When do I use capital letters with people and places? 在什么情況下人名和地名的單詞首字母要大寫(xiě)? How do I use at and in with places? 如何用at和in表示地點(diǎn)? How do I use by and in/on with means of transport? 如何用by和in/on表示交通方式? Test 9 When do I use at,in and on with time expressions? 如何用at,in和on表達(dá)時(shí)間? How do I use from,about and of? from, about和of 的用法 Do I need for in this sentence? for的用法