Most people when the big earthquake took place in that area.A. are sleepingB. were sleepin

问题补充：

Most people when the big earthquake took place in that area.

A. are sleeping

B. were sleeping

C. slept

D. sleep

答案：

A. are sleeping

(答案→)B. were sleeping

C. slept

D. sleep

解析：

这题考查过去进行时的用法，当大地震发生的时候，大多数人正在睡觉。地震是过去发生的，所以用过去进行时。选B。