You may ask the teacher for help ____ difficulty.A．in case ofB．in the case ofC．i_刷题宝

题干

You may ask the teacher for help ____ difficulty.

A．in case of

B．in the case of

C．in any case

D．in no case

上一题下一题 0.85难度单项选择更新时间:2010-09-29 11:27:23

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