问题

— What do you think the noise was?— It ___________ a cat. [ ]

A: may be
B: might be
C: can have been
D: might have been

正确答案是：

同类题型

The old lady can’t hope to ________ her cold in a few days.

the man injured in the earthquake—The doctor said if _________ in a proper way, he was likely to be saved.

What’s the weather like today

We all had a lot of fun at the barbecue yesterdayPity you weren’t there.—I really should have gone with you but I________on some remaining problems

There are various things on sale, so you can choose____ interests you.