题目

--I came ___ two idioms which puzzled me on the cover of an old book which I was looking for a new material in yesterday.  ---Why not go to the teacher for ___ about them?  A. with, an advice  B. to . advice   C. across, advice   D. up, advice 答案：C 解析: come across 意思是: 偶然发现/见到, for这里表示目的, for advice意为: 征求意见.

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