Question

虚拟语气的问题（would have done和could have done）？

If I‘d known you were coming，I ________ have got your room ready.
A.would

B.could
C.might
D.must
答案A，感觉B也不错

Come，on，I wish you wouldn’t go out ebery night，you ________ go and spoil yourself.
A. would
B.must
C.need
D.should
为什么第二个句子不用wil呢？

Answer 1

你好。
1 非常简单。记住：与 if 的虚拟语气搭配时，主句的助动词通常是 would. could往往出现在不含 if 结构的简单句中：Mary went to the labrary yesterday, and i could have joined her, but I forgot to.

2 答案是A .
== you ____WOULD____ go and spoil yourself ( if you go out every night)-------括号中的内容省略了，因为前面已经有了I wish you wouldn’t go out ebery night，所以不必多此一举。

Answer 2

1. could have done 结构为虚拟语气，表示本可能做成某事，而实际上未做。
might have done 指过去可能做成某事，是对过去情况的一种猜测，可能性较小。
2.A would 会

Answer 3

a,a