单选题
Many sales representatives prefer to use laptop computers because they are ______ for people who travel a lot. A. convenience B. conveniently C. conveniences D. convenient
【正确答案】
D
【答案解析】初级问题 be/become/remain这类动词经常跟形容词，做表语。这里的选项中只有D选项是形容词。如果以名词做表语，必须和主语保持一致。 [高频词语] a sales representative 销售代表 prefer to do 倾向于做某事