I _______my homework，I guess I can't join you.
| A．don't finish | B．didn't finish |
| C．haven't finished | D．won't finish |
—The food here is very nice．Thank you for inviting me.
— _____ I’m glad you enjoyed it.
| A．Don’t mention it． | B．Don’t thank me |
| C．Don’t worry | D．Don’t you think so |
— Kitty, do you know ______?
— Sure, about forty minutes.
| A．when did their class meeting begin. |
| B．where their class meeting was held |
| C．how often their class meeting is held |
| D．how long their class meeting will last |
The mobile phone has changed people’s life a lot ________ it was invented.
| A．until | B．since | C．before | D．after |
I have so much homework to do that I don’t know ________.
| A．what to do with | B．how to deal with it |
| C．what to deal with it | D．how to do |
---- You don't know what great difficulty I had _____ to get the two tickets.
---- But the film is really worth_______ twice.
| A．managing; seeing | B．to manage; seeing |
| C．managing; being seen | D．managed; to be seen |