单选题：_____ as much as one-fifth of the trees have been cut down...

题目分类：it的用法
题目类型：单选题
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题目内容：

_____ as much as one-fifth of the trees have been cut down. [ ] A. said
B. It said
C. It is said that
D. As is said

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分类：it的用法题型：单选题

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How can I help____if peoplejust don't follow my advice?[ ]..

How can I help____if peoplejust don't follow my advice?[ ]A. itB. thatC. themD. this

分类：it的用法题型：单选题

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