Loulan is believed ____ by sandstorms from AD 200 to AD 400.
| A．to be gradually covered over |
| B．to have been gradually covered over |
| C．being gradually covered over |
| D．having been gradually covered over |
We‘ve missed the train！” “_____, there’ll be another in ten minutes.”
| A．All right | B．Not at all |
| C．Never mind | D．Don’t mention it |
“Have a drink？” “No thanks, _____.”
| A．I do mind | B．I don’t like it |
| C．Never mind | D．I‘d rather not |
“I prefer a computer made in your company, but I may need some more information about the product.” “_______.”
| A．Thank you | B．It‘s a pleasure |
| C．You are welcome | D．At your service |
“Would you like me to show you the way？” “_______.”
| A．That‘s very kind of you. | B．Yes, you could. |
| C．Good idea！ | D．With great pleasure！ |
“Do you want to go to the movie, Jane？” “______. I feel like doing something different.”
| A．Don’t mention it | B．I don’t want it |
| C．I don’t think so | D．Not really |