The young mother tried her best to keep her temper but in the end her patience ran ______
公共英语
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The young mother tried her best to keep her temper, but in the end her patience ran ______.
A.away
B.out
C.off
D.over
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正确答案:B
解析:此题考查动词短语。run off"逃跑,(使)流出";run out(of)"被用完,被耗尽"; run over"溢出,满出";run away"逃跑"。
