There are students on the playground.
| A．hundred | B．hundreds of | C．hundred of | D．two hundreds |
_________ unusual experience you had in the USA!
| A．What a | B．What an | C．What | D．How |
—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 |