He never falls asleep in class,does he?-______. A Yes ,sometimes B No, sometimes

问题描述:

He never falls asleep in class,does he?-______. A Yes ,sometimes B No, sometimes
答案选A,请说明理由

根据事实情况回答,睡觉就Yes,没睡过就No
根据后面sometimes说明睡过,所以选Yes