11.How much per gallon is this _______?

　　A. poison B.pipe C.ox D.gasoline

　　12.I couldn’t hear the program because there was too much _______.

　　A. grasp B.globe C.superior D.interference

　　13.Thanks for the advice, but this is something I have to _______ out myself.

　　A. fulfill B.identify C.figure D.claim

　　14.Mary was seriously injured in a _______.

　　A. collision B.geology C.manuscript D.pool

　　15.This 80-200mm zoom lens bears canon’s L designation, denoting a top-of-the-line lens built to extremely high _______.

　　A. tolerances B.pitch C.possession D.purses

　　16.According to Mr. Green, this is a _______ problem.

　　A. grand B.complicated C.owing D.powder

　　17.I’m going to call a _______ to repair my car this afternoon.

　　A. mechanic B.host C.giant D.glance

　　18.They have already _______ the telephone in their new home

　　A. parceled B.spun C.installed D.retained

　　19.The roof has _______ in it, and the front steps need to be fixed.

　　A. ants B.drums C.grains D.leaks

　　20.He received four years of training in English and two years in English teaching.He is a _______ English instructor.

　　A. responsible B.scared C.vast D.qualified

　　答案：

　　11.D 12.D 13.C 14.A 15.A 16.B 17.A 18.C 19.D 20.D