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
【详解】此题考查了学生对非谓语动词(不定式)中动词语态的运用能力。all the gifts显然是“被收到”的,所以选择C。
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