If there is no one _____him with the preparaiton,he will have to put off the meeting为什么用to helpIf 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

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If there is no one _____him with the preparaiton,he will have to put off the meeting为什么用to helpIf 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
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

If there is no one _____him with the preparaiton,he will have to put off the meeting为什么用to helpIf 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
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

to help做定语,表将来。

你老师给的答案错了