Please answer it fast


A. Insert 'a' or 'an' where required in the gaps in the following sentences. Pat a mark where no article is required.
1. Sibia did __________ exemplary act by saving the life of a woman.
2. Not many people liked the film, but quite  __________ gew liked its  __________ story.
3. He can't afford such __________ expensive shirt.
4. I prefer __________  classical music to __________ rock music.
5. She took __________ pen and wrote __________ letter.
6.  __________ glass, unlike  __________ water, is __________ poor conductor of __________ electricity.
7. He takes  __________ glass of __________ water before going to play football. 
8. Their function turned out to be quite __________ Occasion,
9. I have only read  __________ little of the book so far.
10. He needs  __________few books from the library.