出现在一个及物动词后面,且it 有一个动词不定式短语或从句.如:
We make it a rule to knock at the door before you come in.
I find it easy to answer this question.
出现在一个及物动词后面,且it 有一个动词不定式短语或从句.如:
We make it a rule to knock at the door before you come in.
I find it easy to answer this question.