Question

【题目】—How long have you been studying at this school?

—I have been studying here ________.

A. since I was thirteen years old

B. when I was thirteen

C. at the age of thirteen

D. after I was thirteen

Answer 1

【答案】A

【解析】句意：——你在这所学校学习多长时间了？——从13岁开始我就一直在这学习。根据How long可知，回答应该是一段时间，只有A项表示一段时间，故选A。