18. –May I use your pen? --!A. Doesn’t matterB. Go aheadC. Of course you couldD. No I do

问题补充：

18. –May I use your pen?

--!

A. Doesn’t matter

B. Go ahead

C. Of course, you could

D. No, I don’t mind

答案：

A. Doesn’t matter

B. Go ahead

(答案→)C. Of course, you could

D. No, I don’t mind

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