—It’sclever

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问题详情:

 —It’sclever

 — It’s clever _____ you to help me work out the difficult math problem. Thanks!

— You are welcome. Now it’s easier _______ you to understand it.

A.      of; of      B. of; for    C. for; of    D. for; for

【回答】

B

知识点:介词和介词短语

题型:选择题

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