Question

【题目】My father was watching TV ______ my mother was cooking.

A. when B. while C. until

Answer 1

【答案】B

【解析】试题分析：句意：--我的爸爸正在看电视，而我的妈妈正在做饭。连接并列的两个正在进行的动作用while，故选B。