题目内容：

He is a student.转为复数形式 Is that an English car?改为复数形式 What colour is the pen改为复数式
Are there any apples in the bag?改为单数形式 Those are not my books.改为单数形式

优质解答

1.They are students.
2.Are those English cars?
3.What color are the pens?
4.Is there an apple in the bag?
5.That is not my book.