一、使用be动词的适当形式填空.
1、Jim and I ( are ) in the same class.
2、All the shops in this city （are　）very small.
3、—Where (is) Jason from?—He ( is ) from Britain.
二、根据句意用isn't或aren't填空.
1、My brother Tony (isn't) at home now.He is in the school library.
2、The old woman under the big tree （isn't）our teacher.She is a visitor.\