1.在空格内填上a或an 1._____ear 2.______actor 3._____hen 4.______toy
1.在空格内填上a或an 1._____ear 2.______actor 3._____hen 4.______toy 5.______university
6.______elephant 7.______hat 8.______umbrella 9.______rabbit 10.______idea
11.______hour 12_______ honest boy 13.______interesting book 14.______easy question
15.______orange dress 16_______apple pie 17_______X-ray machine 18.______ice cream