While Suzy on the sofa the phone rang.A. was sleepingB. sleptC. sleepsD. is sleeping

问题补充：

While Suzy on the sofa, the phone rang.

A. was sleeping

B. slept

C. sleeps

D. is sleeping

答案：

(答案→)A. was sleeping

B. slept

C. sleeps

D. is sleeping

解析：本题考查时态。while引导的时间状语从句经常用进行时。句意：当Suzy正在沙发睡觉的时候，突然电话响了。