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