问题
选择题
I think Jack does his homework _________ than anyone else in his class.
A．careful
B．more carefully
C．the most carefully
D．more careful
答案
答案：B
题目分析：句意：我认为在班里面杰克的作业比其它任何人做得都好。结合语境可知本句中表示和其它人的对比，故用副词的比较级，选B。