2. 外语
  3. Fred was playing the piano while Mary and I (sing)______.

Fred was playing the piano while Mary and I (sing)______.

admin2016-06-10  45
问题 Fred was playing the piano while Mary and I (sing)______.
选项
答案were singing
解析 while引导时间状语从句，表示主句和从句的谓语动词动作在一段时间内同时进行。故此处应用过去进行时。
转载请注明原文地址:https://www.kaotiyun.com/show/SeiK777K
本试题收录于： 大学英语三级A级题库大学英语三级分类
0

大学英语三级A级

大学英语三级

相关试题推荐
随机试题
最新回复(0)