---- 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

B


解析:

考查時態(tài)。由for the last 5 weeks可知用完成時，因此排除A、C，再由上文“你還沒有弄到化學(xué)教科書”，可以推測we一直到目前都在想辦法，因此用現(xiàn)在完成進(jìn)行時。for/in the last /past+段時間，常與完成時態(tài)連用，而in the past則用過去式。

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