________isobviousthateveryoneisconcernedaboutthepresent...
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问题详情:
________ is obvious that everyone is concerned about the present situation of our environment.
A.There B.This C.It D.What
【回答】
C [句意:很明显大家都在关注我们目前的环境状况。It作形式主语。]
知识点:代词
题型:选择题
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