Question

【题目】While Jones ___________ photos,Mary bought a drink.

A. is taking B. taking C. took D. was taking

Answer 1

【答案】D

【解析】句意：当Jones正在拍照的时候，Mary买了饮料。is taking现在进行时态，正在拍照；taking现在分词形式；took是take的过去式；was taking过去进行时态。while当……时候，引导时间状语从句，从句中常用进行时态，动词的持续性动词。根据句中Mary bought a drink可知，这里应使用过去进行时，选D。