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1.This is___we managed to find our way out of the forest.答案是

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1.This is___we managed to find our way out of the forest.答案是C为什么不选A呢?
A.that B.reason why C.how D.what
2.He made___he wouldn't change his mind.答案是B为什么不选A呢?
A.that quite clear B.it quite clear C.quite clear D.how clear that
3.You must keep it in mind___you are a student.答案是B为什么不选A呢?
A.because B.that C.which D.for
4.Tobacco companies try to encourage more young people to start to smoke.The reason is___they want to remain in business.答案是A为什么不选C呢?
A.that B.because C.why D.how
5.I wonder how many years ago___.答案是B为什么不选D呢?
A.did your father retire B.your father retired C.has your father retired D.your father has retired
1、先行词为reason,但如果连接词在从句中作主语或者宾语,则只能用that/which
本题的中文是“这就是········的原因”,用why
2、这个 it 就是从句的内容 .
made 是动词,后面接的是宾语 it ,也就是说 it 是宾语; 那 it 到底是什么呢 ,它就起到一个代词的作用,这个 it 只是个形式上的宾语,真正的宾语在后面,就是从句.
3、that从句,前面的it只是个形式上的宾语,真正的宾语在后面,就是从句.
4、先行词为reason,但如果连接词在从句中作主语或者宾语,则只能用that/which
5、时态问题.many years ago,过去时,用过去时态.D是现在完成时,表示事情发生的时间是从过去到现在,或者事情发生在过去,但对现在有影响.但本题,纯过去时,询问你父亲多少年前退休的~