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 Itisverykind

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 Itisverykind

 It is very kind ____ you to help me with these maths problems because it is very difficult ____ me to work them out.

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

【回答】

A

知识点:介词和介词短语

题型:选择题

标签:Itisverykind