Question

What courses are you going to do next term?

I don't know. But it's about time____on something.
A.I'd decide
B.I decided
C.I decide
D.I'm deciding

2.He was very busy yesterday,otherwise he ____to the meeting
A.would come
B.came
C.would have come
D had come
这题里would come和would have come分别用与什么情况？

Answer 1

1. B It's (about) time ... 有两种用法：一是后面接that引导的从句，that 可省略，但注意此时从句用的是虚拟语气，表示“现在某人该做某事了”。含有该事早该去做而未做，现在去做似乎都为时已晚的意思；二是后面接动词不定式，It's (about) time （for sb）to do sth。
2. C 这是一个条件句，一般来说，主句用一般现在时，从句就应该用一般将来时，在这里，主句用的是一般过去时，那么从句也就应该用一般过去将来时，而根据句意，我们可以知道这里要用虚拟语气，然后要结合一下虚拟语气应该用的事态就可知道答案选C了。

Answer 2

很高兴回答你的问题
A
C
would have done表过去该做的事没做

Answer 3

1.B
2.虚拟语气
C，对过去的虚拟