Question

【题目】________ I was doing the homework, my father was watching TV.

A. While B. As C. Since D. During

Answer 1

【答案】A

【解析】句意：当我正在做家庭作业的时候，我的父亲正在看电视。While当...时候，引导时间状语从句，从句中常使用进行时态；As当...时候，表示主从句的动作同时发生；Since自从；During在...期间，是介词，不能引导从句。根据句中I was doing...,my father was watching...可知，应选A。