Our study group is three girls and two boys.A. made ofB. made fromC. made inD. made up of

问题补充：

Our study group is three girls and two boys.

A. made of

B. made from

C. made in

D. made up of

答案：

A. made of

B. made from

C. made in

(答案→)D. made up of

解析：be made of/ from意思是：由…制成；be made in 意为：在…生产；be made up of 意思是：由…组成。