题目

 Math ______ one of the ______ subjects in middle schools. A. are; important        B. is; most important C. is; more important D. are; much important 答案： B. math是单数，所以系动词用is； one of 后用最高级，important是多音节词，所以其最高级在前边加 the most。不等式的解集是           ．