Something else I’ve greatly enjoyed is working as peer mediator someone who helps stude

问题补充：

Something else I’ve greatly enjoyed is working as peer mediator, someone who helps students to settle problems that they have with other students.

A. the; the

B. /; /

C. a; the

D. a ; /

答案：

A. the; the

B. /; /

C. a; the

(答案→)D. a ; /

解析：考查冠词。a peer mediator 一个同龄调解者 这里是泛指，意为：我所喜欢的任何其他东西都可作为一个同伴调解者。第二格：help sb. to do故不需冠词。