Be quiet！Our teacher has _________ to tell us.
| A．important anything | B．something important |
| C．important something | D．anything important |
As we all know, _______ mankind has realized the walk in ______ space.
| A．the; the | B．/; the | C．/; / | D．the; / |
-----I’m afraid I can’t finish the novel you lent me this week.
----___________.
| A．Please go ahead | B．That’s all right | C．Take your time | D．Not at all |
_______ the manager came to Beijing on business, he would visit his old friends there.
| A．Every time | B．Many times | C．In no time | D．All the time |
We’ll only discuss such problems _______ something to do with our own interests.
| A．that have | B．as have | C．as has | D．which has |
In the police station, I saw the man from ______room the thief had stolen the TV set.
| A．whose | B．whom | C．which | D．that |