问题
选择题
Bob did everything than the other three students. Our teacher chose him to be our monitor.
A．much careful
B．much carefully
C．much more careful
D．much more carefully
答案
答案：D
考查比较级的用法。根据than可知，考查比较级；排除A、B；did是动词，修饰动词用副词，careful是形容词，排除C。Much可以修饰比较级。故选D。