We are busy the final exams.A. to prepare forB. preparing forC. preparingD. preparing with

问题补充：

We are busy the final exams.

A. to prepare for

B. preparing for

C. preparing

D. preparing with

答案：

A. to prepare for

(答案→)B. preparing for

C. preparing

D. preparing with

解析：忙于做某事后面跟动词通常写成be busy （in） doing sth，后面跟名词，通常

写成be busy with sth，表示目的后跟名词用介词for，为期末考试而准备，故

本题选B。