We should try every effort to prevent violence from happening at school, ______ more and more students would drop out of school ______ their personal safety could not be guaranteed.
| A．though; if only | B．though; so long as | C．for; now that | D．for; if |
—May I open the window to let in some fresh air?
—___________!
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With a _________ expression on her face, she is _______ about what to do next.
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—I'
m sorry. I _________ at you the other day.
—Forget it. I was a bit out of control myself.
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__________ attracts movie goers in the film Avatar is its vivid three-dimension effect (三维效果) , grand war scenes and touching love story.
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Her parents died in a car accident when she was a baby and she was _______ by her aunt in Canada.
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