Question

【题目】1 think Jack usually does his homework________than his sister.

A. careful B. carefully

C. more careful D. more carefully

Answer 1

【答案】D

【解析】句意：我认为杰克通常比他妹妹更仔细地做作业。分析句子结构可知，空格处修饰前面的does his homework，即修饰动词，所以应用副词形式，A、C选项中careful为形容词所以排除；由句中的than可知应用比较级形式，carefully为副词，是多音节词，其比较级直接在其前加more，故答案选D。