The police tried ________________ to break up the protest crowds.A.in a vainB.in vainC.in the vainD.

题目简介

The police tried ________________ to break up the protest crowds.A.in a vainB.in vainC.in the vainD.

题目详情


The police tried ________________ to break up the protest crowds.
A.in a vainB.in vainC.in the vainD.for vain
题型:单选题难度:偏易来源:不详

答案

B
“警察努力想驱散抗议的人群但是白费劲了。”in vain “白费劲”固定短语,答案B。

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