在she had been on the pill for three years中,为什么要用been
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在she had been on the pill for three years中,为什么要用been
在she had been on the pill for three years中,为什么要用过去式been,能否用其他动词过去式,还有,这句话是过去完成时么?
在she had been on the pill for three years中,为什么要用过去式been,能否用其他动词过去式,还有,这句话是过去完成时么?
一定要用been.因为,on the pill表示服药.而be为系动词,表示存在,状态等.这里表示她的状态为服药.所以不能用其它代替.
这句话是过去完成时.没错.
过去完成时的构成为had+done.
这句话是过去完成时.没错.
过去完成时的构成为had+done.
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