Question

【题目】________ the age of 13, the boy played basketball for his school team.

A．On B．In C．At D．With

Answer 1

【答案】C

【解析】

试题分析：句意：在13岁的时候，这位男孩为他的校队打篮球。at the age of …在多大年龄的时候，故选C。