题目内容
All these gifts must be mailed immediately _______ in time for Christmas.
[ ]
A.in order to have received
B.in order to receive
C.so as to be received
D.so as to be receiving
答案:C
解析:
解析:
|
不定式的逻辑主语是物 all these gifts,所以应用被动形式,只有C项符合条件。 |
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