Question

13.(2015 四川内江中考) My father was drinking tea in the living room        my mother was doing the dishes in the kitchen.

   A. if   B. while   C. until   D. unless 

Answer 1

13.B 句意:当我呀亲在厨房洗碗的时候，我父亲正在客厅喝茶。

while“当……时”，引导时间状语从句时，从句中谓语动词用延续性动词，且多用进行时。故选B