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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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?

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?
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?

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?
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

to do ;
不定式在此做定语。