问题
选择题
Bob never does his homework _________ Mary. He makes lots of mistakes.
A．so careful as
B．as careful as
C．not as carefully as
D．as carefully as
答案
答案：D
题目分析：句意为：鲍勃做作业没有玛丽细心，他犯很多错误。as+形容词或副词+as表示“和……一样……”。形容词修饰名词，副词修饰动词。根据语境，本句应用副词carefully修饰do(es)。故选D。
