问题
I wonder whether the soldier is one of those who _______ abroad to keep peace.
A:has been sent
B:have been sent
C:have sent
D:has sent
B:have been sent
C:have sent
D:has sent
正确答案是：
同类题型
I wonder if it is going to rain next week.—If it_________, I have to stay at home.
When will you hand in your homework—Sorry, I’m not sure. I _______ writing it yet.
It takes ________ half an hour _________ his homework every day.
We thought of selling this old furniture;but we’ve decided to_________ it. It might be valuable. [ ]