Вставьте неопределенный артикль, где необходимо. 1. This is… book. It is my … book. 2. I have … sister. My …sister is … doctor. 3. They have … dog and two … cats. 4. There is … little brown coffee table in our … room. 5. My … sister is at … work. 6. There are … beautiful trees in our … park. 7. What … nice day today! 8. It is such … difficult task. 9. My … mother keeps… house. 10. We usually have … lunch at 12.
После is, have, what, such везде артикль a, в остальных случаях не надо