×
单选题
280.U.S.News __________ rankings of colleges since 1983. They are a very popular resource for students looking to apply to a university campus.
A
maintains
B
is maintaining
C
maintained
D
has been maintaining
答案解析
正确答案：D
解析：
解析:根据第一句时间状语 since 1983 可知谓语动词应为完成时态;第二句用了一般现在 时,主语 they 指代第一句的 rankings,可见该刊物如今依然会给大学进行排名。综上, maintain 这个动作开始于过去的某个时间并继续到现在,还可能会继续下去,符合现在完 成进行时到使用条件。句意:《美国新闻与世界报道》自 1983 年以来一直保持给各大学 进行排名。这些排名对于希望申请入读大学的学生来说,是一个非常受欢迎的参考资源。
相关知识点：
现在完成进行时用法
相关题目
单选题
23.I was to have made a speech if( )
单选题
22.I have never been to London, but that is the city( )
单选题
21.It was as a physician that he represented himself, and ( )_ he was warmly received.
单选题
20.Come and see me whenever( )
单选题
19.The team can handle whatever( )
单选题
18.( ), he is ready to accept suggestions from different sources.
单选题
17.The physicist has made a discovery, ( )of great importance to the progress of science and technology.
单选题
16.Mr. White works with a chemicals import & export company, but he( )for this industrial fair, since he is on leave.
单选题
15.He left orders that nothing ( ) touched until the police arrived here.
单选题
14.When you have finished with that video tape, don't forget to put it in my drawer, ( )?
