问题

ith would have come to see youif it had been possible, but he __________ so busy.

A:was
B:had been
C:has been
D:were

正确答案是：

同类题型

下列各句没有语病、句意明确的一项

dache _____ meIthought it was going away, but it is getting worse and worse

Are we about to have dinner? — Yes, it _______ in the dining room

In my opinion, obviously, night-time is when children can begin to learn to feel confident ______, without being dependent on anyone else

If_____________ worries me, I often go to him.