—Where is Mr Smith?—Hein prison for more than two months.A. has beenB. has been sentC. has

问题补充：

—Where is Mr Smith?

—Hein prison for more than two months.

A. has been

B. has been sent

C. has been thrown

D. has been put

答案：

(答案→)A. has been

B. has been sent

C. has been thrown

D. has been put

解析： 这题考察现在完成时的用法,因为时间是for more than two months.表示一段时间,所以谓语应该是延续性动词,BCD都是短暂动词,选A.句意是:--史密斯先生在哪里?—他坐牢两个多月了.选A.