题目内容
They were walking along the shore______ a huge wave appeared out of nowhere, sweep them out to sea.
A while B as C when D since
C
解析 when 意为“这时、突然”,相当于and then。
练习册系列答案
相关题目
题目内容
They were walking along the shore______ a huge wave appeared out of nowhere, sweep them out to sea.
A while B as C when D since
C
解析 when 意为“这时、突然”,相当于and then。