People should open the window in the morning to make air ______ in order to keep the indoor air fresh.
| A．spread |
| B．remove |
| C．float |
| D．circulate |
It was 1969 _____ the American astronauts succeeded in landing on the moon.
| A．that | B．when | C．on which | D．which |
----I can’t see the words on the blackboard clearly.
----Why, your eyes need _____. Perhaps you need ______ glasses.
| A．examining; wearing | B．to examine; wearing |
| C．to be examined; to wear | D．examined; wearing |
I _____ to help you but I was not able to spare any time. I _____a paper last night and I’ll have to finish it today.
| A．wanted; have been writing | B．had wanted; was writing |
| C．had wanted; wrote | D．have wanted; wrote |
What’s that actor _____that we saw in the film last night?
| A．called | B．is called | C．calling | D．being called |
Not only _____interested in changing teaching methods but _____beginning to show an interest in it.
| A．the teacher himself is; all his students are | B．the teacher himself is; are all his students |
| C．is the teacher himself; are all his students | D．is the teacher himself; all his students are |