问题
选择题
As she________the newspaper, Granny________asleep.
A．read; was falling
B．was reading; fell
C．was reading; was falling
D．read; fell
答案
答案：B
该题题干的意思应为“当她读报时,奶奶睡着了”｡as, when, while引导的时间状语从句表示过去发生的情况时,若从句的谓语动词为延续性动词,主句的谓语动词为非延续性动词,那么主句的谓语动词须用一般过去时,从句的谓语动词用过去进行时,故答案为B｡