题目内容：

1.What's this in English?(变为复数句） 2.This is a pencil case.（同上）
3.Is this girl your friend (同上）
4.Are those oranges?(变为单数句）
5.They are my brothers.(同上）

优质解答

What are these in English?
These are pencil cases.
Are these girls your friends?
Is this an orange?
This is my brother.
希望能够帮到楼主