A large number of students in our school ____ from the countryside; the number _____ growing these years.
| A．is; has been | B．are; has been |
| C．is; have been | D．are; have been |
The country has already sent up three unmanned spacecraft, the most recent ______ at the end of last March..
| A．has been launched | B．having been launched |
| C．being launched | D．to be launched |
------Where did you get to know her?
------ It was on the farm ______ we worked.
| A．there | B．that | C．where | D．there |
______ I really don’t like art, I find his work impressive.
| A．As | B．Since | C．If | D．while |
______ worries me the way he keeps changing his mind.
| A．This | B．That | C．What | D．It |
------Have you been wasting time on computer games again?
------______. I’ve been studying a lot and I need a break.
| A．No way | B．Not really | C．I don’t agree | D．I couldn’t agree more |