Amy makes fewer mistakes than Frank. She does her homework .A. more carefully B. more car

问题补充：

Amy makes fewer mistakes than Frank. She does her homework .

A. more carefully

B. more carelessly

C. more careful

D. more careless

答案：

(答案→)A. more carefully

B. more carelessly

C. more careful

D. more careless

解析：此题考查的是副词carefully的比较级为more carefully。