高等继续教育 / 英语语法
正确率：100%
题型描述: 单选题
— Have you known Dr. Jackson for a long time?—Yes, since she _ _ _ _ _ _ the Chinese Society.
A.joined
B.has joined
C.had joined
D.joins
— Have you known Dr. Jackson for a long time?—Yes, since she _ _ _ _ _ _ the Chinese Society.
A.joined
B.has joined
C.had joined
D.joins
参考答案：
佳题速递：