问题

Can you tell me ______ to jointhe army

A:how does a person have to be old
B:how old does a person have to be
C:how old a person has to be
D:how a person has to be

正确答案是：

同类题型

He _______after a few day’s treatment in hospital.

Let’s go to the art show this Sunday. — _________.

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Be careful with the machines and you ______ touch any of them!

______ exceptionally heavily might railwayservices be temporarily dislocated (扰乱).