8. My father began to work ____ a bus driver when he was twenty years old.

　　A.for B.to C.at D.as

　　9. _____ hearing the news, I was wild ____ joy. A. At, in B. On, with C. After, by D. /, over

　　10.I don t think Xiao Li is ____ the other students ____ mathematics.

　　A. after, on B. after, with C. behind, in D. behind, at

　　11. Nobody knows it ____ me. A. except for B. except that C. besides D. but

　　12. The window is never opened ____ in summer. A. but B. except C. except for D. but for

　　13. It happened ____ the Long March. A. during B.in C.at D.for

　　14. We go to school ____ a bike. A.in B.on C.by D.ove

　　15. Its very kind____ you to repair the bike ____ me.

　　A.for.for B.of,of C.of,for D.for,of

　　16. Fresh air is good ____ your health. A.at B.for C.of D.to

　　17.The boy is waiting ____ his sister and they will go to the hospital to wait ____ their sick mother.

　　A.for,on B.on,for C.for,for D.on.on

　　18.The group is made up____five students. And they are studying hard to make up____ the lost time.

　　A.of,of B.for,for C.of,for D.for,of

　　19.The PLA man saved the boy ____ death. A. of B.from C.to D.on

　　20. He will come ____ three days. A.before B.after C. in D. later

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