题目内容
-What a great success Shenzhou Ⅶ is!
-Yeah, our scientists must have done everything they can ________ it up.
[ ]
A.
send
B.
sending
C.
to send
D.
to be sent
答案:C
解析:
解析:
|
考查非谓语动词。everything后是省略了that及谓语动词do的定语从句,此处用不定式作状语,表目的,且send与scientists之间是主动关系,用不定式的主动形式,故选C。 |
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