Question

【题目】 he was exercising at the park yesterday morning , he found a purse under the tree.

A. While B. Before

C. Though D. Suddenly

Answer 1

【答案】A

【解析】

试题分析：句意：昨天清晨，当他正在锻炼的时候，他发现一个钱包在树下。结合句意在……时候为while,后面的动作为正在进行的动作。故选A