155. In Beijing volunteers are making use of every minute to ______ their foreign languages because

题目简介

155. In Beijing volunteers are making use of every minute to ______ their foreign languages because

题目详情


155. In Beijing volunteers are making use of every minute to ______ their foreign languages because 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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