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25.In my opinion,life in the twenty-first century is much easier than ________.
A.that used to be B.it is used to C.it was used to D.it used to be
为什么不选A,that不也可指代么?
人气:388 ℃ 时间:2019-11-18 18:33:34
解答
惯用法,it用作指代比较多, that 则多用作连接词
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