Nothing can happen with us, ? 2. Somebody’s forgotten their coat, ?
3. You never wrote a letter, ?
4. It wasn’t cold yesterday, ?
5. You speak Chinese, ?
6. She doesn’t work in the office, ?
7. The cake isn’t tasty, ?
8. Stop talking, ?
9. Emily can’t roller-skate, ?
10. Everybody is ready, ?
11. I’m going to the disco tonight, ?
12. Somebody has brought a letter, ?

Dear Mike,
I think you should talk to your friend even if you don't want to.
Tell him that his actions are bad and he might face various problems. For example, he might have a quarrel with the teacher if he notices that he is writing off. There also might be problems with the entire subject. If your friend doesn't understand that, offer him your help. Help him with the subject. Don't quarrel, solve the problem peacefully. Your friend will understand you and you'll resolve the conflict and resume your good friendship. Will you tell me later how everything went and how you solved the problem?
With love,
Your friend Misha

1.This is a book. It is my book. 2. Is this your  pencil? — No, it isn't my  pencil, it is ray sister's  pencil. 3. I have a sister. My sister is  engineer. My sister's husband is  doctor. 4. I have no  handbag. 5. Is this a watch? — No, it isn't ... watch, it's a pen. 6. This  pen is good, and that  pen is bad. 7. I can see a pencil on your  table, but I can see no  paper. 8. Give me a chair, please. 9. They have a dog and two ... cats. 10. I have a spoon in my  plate, but I have no  soup in it.