请在下列名词前加上不定冠词a或an. 1. apple 3. hour5. principal7. egg9. umbrella 2. flower4. university student6. ar

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编辑：chaxungu时间：2026-04-23 21:42:39分类：小学英语题库

请在下列名词前加上不定冠词a或an。

1. ___________apple
3. ___________ hour
5. ___________ principal
7. ___________ egg
9. ___________umbrella

2. ___________ flower
4. ___________ university student
6. ___________ armchair
8. ___________ peach
10. ___________ policeman

1. an 2. a 3.an 4. a 5. a 6. an 7. an 8. a 9. an 10. a