If there is no one _____him with the preparaiton,he will have to put off the meeting为什么用to help
If there is no one _____him with the preparaiton,he will have to put off the meeting.选项中有to help为啥选help
人气：466 ℃ 时间：2020-05-23 15:51:40
解答
to help
因为这是作后置定语的.不定式可以作定语（表将要发生的动作）,而动词原形help 不能
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