Question

几道英语时态题，请帮我解释一下好么？详细点吧！

4.clint woke up in the middle of last night . he was frightened and didn't know where he was. he(had been dreaming)
7.we were good friends. we (had knowed) each other for a long time.
9.yesterday i saw leon sitting on the ground. he was out of breath. he (had been running)
为什么要用这些时态啊
22.he ( ) several novels since 1985. most of them ( ) quite successful, but the last one ( )very good reviews.
A has written/were/hasn't got
B wrote/have been/didn't get
C has written/have been/didn't get
D wrote/were/didn't get
选A行不
34.many years ago, he ( )in paris with his uncle for a long period of time.
A had been living
B had lived
C lived
D has been living
A和D不行？
35.how long ( )here?i ( )you come in.
A do you sit/haven't seen
B did you sit/did not see
C have you sat/have not seen
D have you been sitting/did not see
B为什么不对
37.i ( )there five minutes when all the lights ( )out.
A was/went
B had been/went
C have been/go
D have been/went
D行不？
42.she will come to call on the moment she ( )her work.
A has finished
B had finished
C finishes
D will finish
B行不？
47.in two years' time he ( ) his master's degree in chemistry.
A has completed
B will be completing
C will have completed
D will have been completing
D行不？

Answer 1

4.7.9用了过去完成时是因为事情发生在过去的过去，并且对现在是有影响的，如4.where he was. he(had been dreaming)是他在昨晚半夜醒来前发生的事，并且对他昨晚造成了影响。

22.应该不能选A，因为他最后一本书写的不好是一件确定的事情，应该用一般时

34.我感觉A可以，但是D肯定不行，因为事情发生在很多年前的之前，应该是过去完成时，并且是一段持续的动作，所以我感觉A可以

35.现在完成进行时还用来表示从过去开始、现在刚刚结束的动作。
如：I’m sorry I’m late. Have you been waiting long?
真对不起，我迟到了。你等了很久了吧？
由语境我们可以猜测事情是刚发生的，所以B 不行

37.D不行。前半句是现在完成时，但后半句是过去式，时态不对

42.同37，时态不对

47.感觉不行吧，好像只有将来完成时，没有将来进行完成时吧，如果D可以的话，那就翻成：两年后，他将完成...但是那个动作是到那个时候还在进行的，感觉有点怪