题目内容

Many children are addicted to computers, so they often ______ their parents and play the computer games for hours every day.

A. define
B. defect
C. defy
D. dedicate

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My roommate is always very optimistic, and that’s why he still _____ his good humor after all the setbacks.

A. retains
B. repays
C. accords
D. installs

There is a widely held suspicion that the politician, though retired, still has great power and is _______ events behind the scenes.

A. imitating
B. combating
C. arresting
D. manipulating

The organization has been working with local authorities as well as regional government and officials to ________ the problem of climate change.

A. transplant
B. tame
C. tackle
D. tune

People who work in offices are ______ as “white-collar workers” for the simple reason that they traditionally wear a white shirt with a collar and a tie to go to work.

A. derived from
B. referred to
C. drifted off
D. bonded with

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