【2012北京】1. I ____ Mr. Smith since he moved to Shanghai.
A. didn’t hear from B. don’t hear from
C. won’t hear from D. haven’t heard from
【2012北京】2. Today, computers are really helpful. They ____ everywhere.
A. use B. are used C. used D. were used[中~国#教育出版网^&%]
【2012甘肃鸡西市】3. My grandpa is sleeping. Will you please_____the radio?
A. turn down B. turn up C. turn on
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