Question

Please answer these articles​

Answer 1

Answer:

1. a

2. an , a, an

3. a

4. an

5. a

6. an

7. an

8. an

9. an

10. a

11. an

12.an

13. an

14.an

15. An ,a

16. a ,a

17. A

18.a ,an

19.an

20. a