用a或an填空。 1. ____________ egg 4. ____________ apple 7. ____________ driver 10. ____________ orange13. ____________ book 2. ____________ girl 5. ____________ elephant 8. ____________ ant 11. ____________ watermelon14. ____________ umbrella 3. ____________ hand6. ____________ goose9. ____________ dog12. ____________ zebra15. ____________ table
| 1. an 2. a 3. a 4. an 5. an 6. a 7. a 8. an 9. a 10. an 11. a 12. a 13. a 14. an 15. a |