×
单选题
21.The competition from experienced staff members, some of whom are higher in rank, to mydisadvantage.
A
A. works
B
B. working
C
C. work
D
D. to work
答案解析
正确答案：A
解析：
21.【翻译】来自于有经验的职员的竞争，其中一些人职位更高，使我处于不利地位：【精析】A分析句子结构可知，两个逗号之间为非限制性定语从句，修饰前面的experienced staff members,主句中 缺少谓语动词，所以排除选项B、D。本句主语部分的中心词为competition竞争），是不可数名词，所以谓语动词应用 单数形式。故选A。
相关题目
单选题
79.new products have been successfully produced.
单选题
78.Those scientists were conducting an experiment and expected a good.
单选题
77.Many newwill be opened up in the future for those with university education.
单选题
76.The population of the world is growing at a dangerous.
单选题
75.Those opinions are now out of.
单选题
74.I saw a traffic this morning.
单选题
73.It wasn＇t an accident. He did it on.
单选题
72.We still have tremendousto overcome before we achieve our goal.
单选题
71.I hope my teacher will take my recent illness intowhen judging my examination.
单选题
70.The actual cost of the building was much higher than our original.
