问题
Not only the USA and Russia but also China ________ manned satellites to circle the earth.
A:has sent up
B:has been sent up
C:have sent up
D:had been sent up
B:has been sent up
C:have sent up
D:had been sent up
正确答案是：
同类题型
I set up e-mail addresses for my mum and dad ________I could e-mail them regularly.
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Which office is Johnson Black in?—Johnson Black? I’ve heard of person here.[ ]
My mum is a typist.— I know this sort of work ______ skill and speed.