Ответ:
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 an engineer. My sister's husband is a doctor.
4. I have no handbag.
5. Is this a watch? — No, it isn't a 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.