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— Sorry, I have to ________ now. It’s time for class.
— OK, I’ll call back later.
A.hang upB.hang onC.hold onD.hold up
A
动词词义辨析题。A. hang up“挂断电话”B. hang on“等待“”C. hold on“不挂断”D. hold up“举起”根据句意“不得不挂断电话该上课了”所以选A。
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