题海让大学四年没有难题
白天模式登陆

题目详情

单选题 We were swimming in the lake ______ suddenly the storm started. ( )

A. when

B. while

C. until

D. Before

学科:英语句子

时间:2023-05-08 07:43:26

Copyright © 2022 津ICP备2021001502号