Question

【题目】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

【答案】B

【解析】句意：我的爸爸正在客厅里喝茶，我妈妈在厨房洗碗。A. if如果；B. while正当……时候；C. until到…为止；D. unless除非，如果不。结合句意可知，答案为B。