单选题 The car ______ halfway for no reason.
A. broke off B. broke down C. broke up D. broke our

【正确答案】 B
【答案解析】[解析] A项break off意为“折断,突然停止讲话”;B项break down意为“坏了,抛锚”;C项break up意为“拆散,驱散(人群)”;D项break out意为“(瘟疫,疾病,战争等)爆发”。