將下列句子改為單數(shù)或復(fù)數(shù)形式
1.This is a T-shirt in the box.[改為復(fù)數(shù)]
2.These are knives.[改為單數(shù)]
3.It is an apple.[改為復(fù)數(shù)]
4.They are students in the school.[改為單數(shù)]
5.That is a welf.[改為復(fù)數(shù)]
6.Is there a book in the desk?[改為復(fù)數(shù)]
二.寫出意思相近的句子
1.He has a book in his bag.改為：[ ] [ ] a book in his bag.
2.I am Chinese.改為：I [ ] [ ] [ ].
3.What is the weather like today?改為：[ ] [ ] the weather like today?
4.Thank you.You're welicome.改為[ ][ ].That's[ ][ ].
5.Whose is that dress?It's my dress.改為：[ ][ ]is that?It's[ ].