问题补充：
Lucy does her homework very . She is than Lily.
A. carefully, much more careful
B. carefully, much carefuller
C. careful, many more careful
D. careful, a little carefuler
答案：
(答案→)A. carefully, much more careful
B. carefully, much carefuller
C. careful, many more careful
D. careful, a little carefuler
解析：very后接形容词或副词的原级，本题第一空因为是修饰动词的，故要副词，
后一空显然要用比较级，careful的比较级为more careful，可以用much来修饰，故选A
