---- You haven’t got the textbook for my chemistry course yet.
---- I know, and we to get it for the last 5 weeks.
A. will have been trying
B. have been trying
C. will be trying
D. had tried
网友回答
A. will have been trying
(答案→)B. have been trying
C. will be trying
D. had tried
解析：考查时态。由for the last 5 weeks可知用完成时，因此排除A、C，再由上文“你还没有弄到化学教科书”，可以推测we一直到目前都在想办法，因此用现在完成进行时。for/in the last /past+段时间，常与完成时态连用，而in the past则用过去式。