It was silly you to give up things that we all wanted.A. for, to doB. for, doingC. of, t

It was silly you to give up things that we all wanted.
A. for, to do
B. for, doing
C. of, to do
D. of, doing

A. for, to doB. for, doingC. of, to do(答案→)D. of, doing解析：句意：你放弃做我们都想做的事是傻的。本题考查It’s +形容词+of/for sb to do句型以及give up词组的用法。当形容词表示客观情况，形容这件事本身时，用for句型，如 It’s difficult for me to learn Japanese.指的是学日语这件事情困难。而当形容词表示主观感情或态度，说明人的性格品质时，用of句型，如It’s kind of you to help me.你是善良的。另外，give up doing放弃做某事，up是介词，其后用doing。故选D。

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