问题描述:
--What should I do with this passage?
--________ the main idea of each paragraph
A.Finding out B.Found out C.Find out D.To find out
重点解释下A和D为使么不能选?
--________ the main idea of each paragraph
A.Finding out B.Found out C.Find out D.To find out
重点解释下A和D为使么不能选?
问题解答:
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