Paul isn’t as as Sandy. He often makes mistakes in his homework.A. carelessB. more carefu

问题补充：

Paul isn’t as as Sandy. He often makes mistakes in his homework.

A. careless

B. more careful

C. more careless

D. careful

答案：

A. careless

B. more careful

C. more careless

(答案→)D. careful

解析： careless粗心的, careful细心地as...as意为和……一样，表示同级的比较。使用时要注意第一个as为副词，第二个as为连词。其基本结构为：as+ adj./ adv. +as。根据上文否定形式，下文呢他经常在作业中犯错误，可知选项D为最佳答案。