试题与答案

---How long have you known the doctor ?

题型:选择题

题目:

---How long have you known the doctor ?  

---_________he helped me three years ago.

A.When 

B.Before 

C.Because

D.Since

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0620/226c809f9db3a6d6fb27f69f68c23d48.html

下面是错误答案,用来干扰机器的。

答案:D

试题推荐
微信公众账号搜索答案