1、用a或an填空。
??____ “U” ____ ice-cream ____ goalkeeper ____ teapot ____apple
____office ____English book ____umbrella ____unit ____hour
2、根据需要，填写冠词a，an或the。
(1)Who is ____girl behind ____tree?
(2) ____old man has two children, ____ son and ____daughter.
(3)This is ____ orange. ____ orange is Lucy’s.
(4)He likes playing ____guitar. We have ____same hobby.
(5)We all had____good time last Sunday.
(6)She wants to be____doctor.