是on a week 还是in a week

是on a week 还是in a week 是in the week还是of the week,是in a week还是of a week We went home___ A.last week B.on last week C.in last week D.at last week We go to Beijing on a train.请问是on a train还是in a train? We have five ( ) classes in a week We have biology ( ) three in a week? 是on the first week还是in the first week通常用on the week还是in the week? we have three classes ___PE every week.A.in B.for C.on 应该选择那个? We're going to the park_______next week?A.in B.on C.at D./ 在写作方面是：in还是on writing?l have a test ______ writing next week.of为什么不行? We will have a party ____ this week,but they will have one ___ next week A.on'to B.in;/ C./;/ D/;on on last week还是in last week Have a nice we 最后一个单词We 是week的缩写还是. We stayed in England for a week.（对划线部分提问）划线部分是for a week 应该用in the week还是for a week? can we have a look______your picture?Can we have a look______your picture?A.on B.at C.in D.to 是at 还是on? we have classes from Monday to Friday in a week 是in还是for 我今天就要知道 老师说的!并写出为什么 We have three English class on a week.提问