问题

The PLA soldiers came to the ruins of Yushu and after ______ seemed to be a long time, they helped some victims out.

A:which
B:that
C:what
D:when

正确答案是：

同类题型

Now that we’ve discussed out problem, are people happy with the decisions ?[ ]

I’d prefer ______ in the office rather than_____ at home watching TV.

Did you enjoy at the party last night, Amy— Yes. I had a good time.

When I was in trouble, my friends often ___ me a lot of help.

— Jack, do you know anything about Doctor Brown? — I _____ to him for years. I don’t see how anyone else could do better.[ ]