We worked all night, for the coming procession.A. to prepareB. preparingC. preparedD. was

发布时间：2020-08-14 23:46:55

We worked all night,      for the ing procession. 
A. to prepare
B. preparing
C. prepared
D. was preparing

网友回答

A. to prepare
(答案→)B. preparing
C. prepared
D. was preparing
解析：作状语的现在分词短语常用逗号与句子的其它部分隔开,而作目的状语用的动词不定式短语只有置于句首时,才可以用逗号隔开.当然,若去掉逗号,答案则变成A.
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