23. With Shanghai World Expo drawing near, volunteers are making use of every minute to _______ thei

题目简介

23. With Shanghai World Expo drawing near, volunteers are making use of every minute to _______ thei

题目详情


23. With Shanghai World Expo drawing near, volunteers are making use of every minute to _______ their foreign language because language volunteers must pass a written test and an   interview.
A.polish upB.take upC.put upD.make up
题型:单选题难度:偏易来源:不详

答案

A

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