Question

【题目】It took me quite a few minutes ________ I could recognize his face.

A. till B. when

C. since D. before

Answer 1

【答案】D

【解析】考查连词词义辨析。句意：过了好几分钟我才认出他的脸。A. till直到；B. when当……时候；C. since自从；D. before在……之前。句中的before表示“过了多久后才……，动作进行到什么程度才……”。故选D。