Question

【题目】By the time the policemen broke into the house, the thief away through the window.

A. ran B. is running

C. has run D. had run

Answer 1

【答案】D

【解析】句意：警察破门而入的时候，小偷已经从窗户逃走了。By the time后面的从句谓语动词用过去式,主句用过去完成时。故选D。