Здесь нужно сделать задание, использую презент континтус.

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.