单项选择题

John ______ there since 1998, so he ______ them.

A. has worked; knows
B. had worked; had known
C. had worked; knew
<上一题 目录 下一题>
热门 试题

单项选择题
You ______ me waiting for two hours. I ______ for you since five.
A. kept; waited
B. have kept; have waited
C. kept; have waited
单项选择题
Where ______ Bob ______ To the library. He ______ there for an hour.
A. has; been; has gone
B. has; gone; has been
C. did; go; went
相关试题