Вставьте am, is, are в следующих предложениях:
1. I … not three years old.
2. This suitcase … very heavy.
3. The dog … asleep.
4. They …students.
5. I .. hot. Open the window, please
6. Ann … at home but her children … at school.
7. The exam … not difficult.
Помогите решить пожалуйста

1. I am not three years old.2. This suitcase is very heavy.3. The dog is asleep.4. They are students.5. I am hot. Open the window, please.6. Ann is at home but her chidren are at school.7. The exam is not difficult.