The murder happened _______ between nine and eleven last night.
| A．sometime | B．sometimes |
| C．some time | D．some times |
If the company fails to make enough money, it will have to.
| A．take away | B．close down |
| C．break up | D．set off |
--Did you call Fred back?
--I didn't need to,I'll see him tomorrow.
| A．because | B．unless | C．when | D．though |
That's all I have to say. Is there anything you'd like to?
| A．talk | B．require | C．hold | D．add |
--Is it OK if I sit on this chair?
--Sorry..
| A．Here you are. | B．Take it. |
| C．Not at all. | D．It's taken. |
If there"s a lot of work, I'd like to keep on until it is finished.
| A．do | B．to do | C．done | D．doing |