____is hard to protect them better . A.this B.that C.it D.one 写解释

分类: 作业答案 • 2022-04-15 08:26:49

问题描述：

答

C
it 指示代词，代替 to protect them better.
to protect them better is hard
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建议百度"区别one it that this", 有解释的。知其所以然 :)

答

选C,it是形式主语,代指后面的protect them better.