Question

【题目】（2014海淀一模）He was about halfway through his meal _____ a familiar voice came to his ears.

A. why B. where

C. when D. while

Answer 1

【答案】C

【解析】试题考查when引导的时间状语从句，when可以表示“当…时候”，也可以表示 “这时”，相当于at that time，句意：他刚吃完一半的饭这时听到一个熟悉的声音。选C。