问题补充：
It took me a lot of time my homework.
A. finish
B. to finish
C. finishing
D. finished
答案：
A. finish
(答案→)B. to finish
C. finishing
D. finished
解析：take 用于 it takes sb ... to do sth句型，仅指花费时间（three hours等），必须用it作形式主语，指代下文不定式内容；句意：完成我的作业花了我许多时间。故选B。
