-You haven’t got the textbook for my chemistry yet. -I know, and we to get it fo

—You haven’t got the textbook for my chemistry yet.

—I know, and we ________ to get it for the last fiveweeks.

A. will have been trying            B. have been trying

C. will betrying                       D. had tried

试题答案

【答案】

B 

【解析】

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