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

问题描述:

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

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