Our classmate often keep in touch with each other on the pho

问题描述：

Our classmate often keep in touch with each other on the phone
此句中是用classmate还是classmates
字典上:Be those your classmate?那些是你的同班同学吗?
请问classmate是可数名词还是不可数名词?

1个回答分类：英语 2014-10-07