B
1.kind 和you 有主表关系（You are kind) 此时要用of
2.be kind to sb 对.友好 固定短语
It's so kind _____ you to be kind ___ me.A of of B of to Cto to Dfor to 选B 说明理由
It's so kind _____ you to be kind ___ me.A of of B of to Cto to Dfor to 选B 说明理由
英语人气：700 ℃时间：2020-01-29 17:23:00
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