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新概念英语-1-72课练习
1.在需要的地方填上a或an: ( 6 points )
1)Alice is _____ air-hostess. Her father is _______ engineer, and her mother is _____ housewife.
2)He has _______ uncle and his uncle works in ________ university.
3)How many days are there in _________ year? How many hours are there in _____ day? How many minutes are this in _______ hour?
