—-I’m very sorry. I haven’t brought you the pen you lent me yesterday.—-Forget it. You not

问题补充：

—-I’m very sorry. I haven’t brought you the pen you lent me yesterday.

—-Forget it. You not return it to me as I have got an extra one.

A. must

B. need

C. can

D. should

答案：

A. must

(答案→)B. need

C. can

D. should

解析： 考查情态动词，must 必须，need 需要，必要，can 会，should 应该，句意：很抱歉，我没有给你带来昨天你借给我的钢笔。算了吧，你没有必要还给我了，因为我已经又买了一个。故选B。