they are their computer.单数 this is my watch.复数 whose teacher are these?they are ours.单数

问题描述:

they are their computer.单数 this is my watch.复数 whose teacher are these?they are ours.单数
ls this your pencil?yes,it is.复数

It is their computer.
These are our watches.
Whose teacher is he/she?He/she is mine.
希望对你有帮助还有后面啊一个Are these your pencils?Yes, they are.