Peter is ______hardworking than his classmates,but he failed the

Peter is ______hardworking than his classmates,but he failed the exam.
A、not so
B、no more
C、not much
D、not less
【正确答案】：D
【题目解析】：此题考察的是比较结构。该句的意思是Peter和他同学一样勤奋，但他考试没及格。No more+形容词+than…和not less+形容词+ than都可以表示和…一样…，但在表达上的差别为no more than是不比别人多，而not less than是不比别人少，根据后面考试不及格，应该选not less。