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　　一、单项选择

　　1. We work five days _________ week.  A. a  B. an  C. the  D. /

　　2. ____book on the desk is ____ useful one.  A. The; an  B. A ; a  C. The ; a  D. The ; /

　　3. We can't see ____ sun at ____ night.  A. a; / B. a; the C. the; /.D. the; the

　　4. After _______ supper, he stayed at home and played _______ piano.

　　A. the; the  B. /; the  C. /; a  D. /; /

　　5. I have two dogs.____ black one is two years old and ____ yellow one is three years old.

　　A. A; a  B. The; a  C. The; the  D. A; the

　　6. I've tried it three times. Let me try ______ fourth time.  A. a  B. an  C. the  D. /

　　7. In the word "poridge" ____ "r" is lost.  A. the  B. an  C. a  D. /

　　8. English is ____ useful language in ___ world.  A. an; the  B. a; the  C. the; the  D. an; an

　　9. __ new bridge has been built over __ Huangpu River. A. The; a  B. A; /  C. A; the  D. An; an

　　10. This is ___ orange. ___ orange is on the table.  A. a; The  B. an; The  C. an; An  D. the; An

　　11. -Have you seen ____ bag? I left it here just now.  -Is it ___ one on the chair near the door?

　　A. a; a  B. the; the  C. a; the  D. the; a

　　12. I have ____ blue coat.  A. a  B. an  C. the  D. some

　　13.This is _______ apple. It's_______ big apple.  A. an; a  B. a; the  C. a; an  D. an; the

　　14. They passed our school _______ day before yesterday.  A. an  B. one  C. a  D. the

　　15._____ woman over there is ___ popular teacher in our school.

　　A. A; an  B. The; a  C. The; the  D. A; the

　　16.This is _____interesting story-book and it is also _____ useful one.

　　A. a; a  B. an; an  C. an; a  D. a; an

　　17. The museum is quite far. It will take you half ___ hour to go there by _____bus.

　　A. an; / B. an; a C. a; / D. /; /

　　18. Bill is _____English teacher. He likes playing _______ football.

　　A. a; the  B. an; the  C. a; /  D. an; /

　　19. Shanghai is in______ east of China.  A. /  B. an  C. the  D. a