题目内容
4. 一When they (leave) Guang
zhou?
--This morning. They (be) away for about three hours.
4. did; leave; have been
练习册系列答案
相关题目
题目内容
4. 一When they (leave) Guang
zhou?
--This morning. They (be) away for about three hours.
4. did; leave; have been