Question

【题目】Father was reading a newspaper, ________ Mum was cooking dinner when I got home yesterday.

A. when B. while C. until D. as

Answer 1

【答案】B

【解析】

试题分析：句意：父亲正在读报纸，然而昨天当我到家的时候，母亲正在做晚饭。A. when 当……时候； B. While当……的时候；C. Until直到；D. As当……时候。根据句意可知选B。