____________age7,Brucewonsecondprizeinthepianocompetiti...
问题详情：
____________age 7, Bruce won second prize in the piano competition.
A. In B. At C. On D. For
【回答】
B
知识点：介词和介词短语
题型：选择题
问题详情：
____________age 7, Bruce won second prize in the piano competition.
A. In B. At C. On D. For
【回答】
B
知识点：介词和介词短语
题型：选择题
