问题补充:
The research group 15 members has made great achievements in recent years.
A. is made up of
B. makes up
C. made up of
D. making up of
答案:
A. is made up of
B. makes up
(答案→)C. made up of
D. making up of
解析:考察定语用法。本题的关键是分清句中结构,本句的谓语动词是has made great achievements in recent years.前面的形容词短语made up of 15 members是对名词The research group进行修饰限制。相当于which is made up of 15 members.句意:由15个成员组成的研究队伍,在最近几年里已经取得了巨大的成就。故C正确。