关于语法结构 原句 When do the children do their homework?请问这句话中可不可以把第一个do去掉变成 When the children do their homework?
问题描述:
关于语法结构 原句 When do the children do their homework?
请问这句话中可不可以把第一个do去掉变成 When the children do their homework?
答