do是及物动词,一定得跟宾语.所以有when to do it 以及how to do it,那你肯定又问,那为什么what to do 后边没有,do 不是及物的吗?那是因为what 就是do的宾语,提前了,所以后边没有it.做什么做什么,那个当“什么”讲的“what"提前了,所以后边没it了
what to do和how to do it和when to do it中何时有 it?
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相关问题
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what to do和how to do it
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What to do和How to do it的区别
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what to do with it = how to deal with it =how to do with it
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what to do 和when to do it是什么结构
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what to do 和how to do it 的语法要点
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what to do with it 、 how to deal with it 、how to do with it的
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how to do it和how to do区别
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为什么what to do,how to do it?
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what to do about it 还是 how to do about it
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how to do it 和how to do 的情况