Вставьте артикль, где это необходимо this is … book. It is my book. I have … sister. There are beautiful … tress…

his is a book. It is my book. 2. Is this your pencil? — No, it isn't my pencil, it is my 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. She has got a headache. 6. Have they got a car? — Yes, they have. Their car is very expensive but reliable. 7. Have you got a calculator? — No, I haven't. 8. Is this a watch? — No, it isn't a watch, it's a pen. 9. This pen is good, and that pen is bad. 10. I can see a pencil on your table, but I can see no paper. 11. Give me a chair, please. 12, They have a dog and two cats. 13. I have a spoon in my plate, but I have no soup in it. 14. My friend says he is going to be a millionaire one day. 15. Would you like an orange? 16. Mr. Smith is an artist, Mrs. Smith is a poetess.