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A.should B.must C.will D.can

【題目】John was dismissed last week because of his ________attitude towards his job. （ ）
A.informal
B.casual
C.tough
D.violent

A.where B.how C.what D.which

—Only ______.

A. gradually B. broadly

C. slightly D. extremely

A. which B. what C. where D. why

A. cut in B. cut down C. cut out D. cut up

【題目】For years，scientists have been worried about the ________ of air pollution on the earth's natural conditions. （ ）
A.effect
B.result
C.account
D.cause

A. benefited B. benefit

C. benefit from D. beneficial to

【題目】—Sorry I'm late.I got stuck in traffic.
—________.You're here now.Come in and sit down.（ ）
A.You are welcome
B.That's right
C.I have no idea
D.Never mind

Many of the creatures in the movie “Avatar” are not real, but much of ______ happens is still attractive.

A. which B. what C. that D. them