something/smoebody/nothing等不定代词后面是加todo还是加doing?如：Thereisalwayssomethinginteresting--------(happen)there.填什么?

题目详情

something/smoebody/nothing等不定代词后面是加to do还是加doing?
如：There is always something interesting --------(happen) there.填什么?

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答案和解析

填happening,因为is是动词,happen也是动词,所以要用happening,因为是always,所以表示状态持续,不用todo而用ing形式
something/smoebody/nothing等不定代词后面是加to do
doing表示正在做或者状态持续

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