—Isn't it a surprise that I happened to meet Francis Mafhews at the Christmas party last week?
—If my memory serves me correctly, you ____ each other for exactly two years．
| A．hadn't seen | B．haven't seen | C．didn't see | D．don't see． |
In recent years many football clubs ______ as business to make a profit.
A. have run B. have been run C had been run D. will run
Though we don’t know what was discussed, yet we can feel the topic_____.
| A．had changed | B．will change | C．was changed | D．has been changed |
By the time he realizes he ____into a trap, it’ll be too late for him to do anything about it.
| A．walks | B．walked | C．has walked | D．had walked |
—Have you known Dr. Jackson for a long time?
—Yes, since she________ the Chinese Society.
| A．has joined | B．joins | C．had joined | D．joined |
--- I’m sure Andrew will win the first prize in the final.
--- I think so. He ___________ for it for months
| A．is preparing | B．was preparing |
C．had been preparing | D．has been preparing |