John's father__mathhematics in this school ever since he graduated from Harvard UniverJohn's father__mathhematics in this school ever since he graduated from Harvard UniversA:taught B:teaches C:has taught D:is teaching

问题描述:

John's father__mathhematics in this school ever since he graduated from Harvard Univer
John's father__mathhematics in this school ever since he graduated from Harvard Univers
A:taught B:teaches C:has taught D:is teaching

C JOHN 的父亲自从哈佛毕业以来一直在这所学校教数学。

C

C.后文ever since