Hoàn thành các câu với thể phủ định của động từ "to be" hoặc "to have":
1. Our postman doesn't ......... a big bag.
2. This ........ my umbrella.
3. I .......... an umbrella.
4. Today ........ Susan's birthday.
5. Susan ........ birthday today.
6. These ........ his photos.
7. Steve .......... seven photos.
8. This ........... our small house.
9. We ........... a small house.
10. Sally ........... a brother and a sister.
11. Harry ........ any cousins.
12. Tony .......... mary's brother.
13. We ........ singing a song now.
14. Sheryl .......... a horse.
15. Cary ............... 14 years old.