will take you a lot of time to find him in the crowd.A. ItB. IC. WeD. They

问题补充：

will take you a lot of time to find him in the crowd.

A. It

B. I

C. We

D. They

答案：

(答案→)A. It

B. I

C. We

D. They

解析：本题用的是句型：It takes sb. some time to do sth. 干…花了某人…时间。其中it作形式主语。