A girl became a writer at age of 12 age when many children are still in the primary scho

问题补充：

A girl became a writer at age of 12, age when many children are still in the primary school.

A. an;an

B. the;an

C. an;the

D. the ;the

答案：

A. an;an

(答案→)B. the;an

C. an;the

D. the ;the

解析：该词考查冠词用法,at the age of……为固定结构，an age when是the age of的同位语，后跟由when引导的定语从句

【标签】冠词用法