Is_____possible to master a foreign language without much memory work?A.thisB.thatC.itsD.it请说明原因,谢谢.

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D 把句子变回陈述句 It is possible to master a foreign language without much memory workIt 作为句子形式主语 实际主语是to master a foreign language without much memory work吃饭了 一周不能来了 楼主学习加油 下周见