单选题 The study of English was even made compulsory in some high schools in Germany.
【正确答案】 B
【答案解析】[词义辨析] compulsory与required同义,意为“必须做的,按规定要做的,有责任的,有义务的”。compulsive“极有趣的,令人着迷的”;compress“压紧,压缩,挤压”;selective“选择的,选择性的,挑拣的”。