—Can I smoke here?
—No, at no time in the library.
| A．permits smoking |
| B．does smoking permit |
| C．smoking is permitted |
| D．is smoking permitted |
The best way to prevent the air polluting _____ , but the sky is still not clear.
| A．is used | B．are used | C．has been used | D．have been used |
--- What do you think of _____opening ceremony of the Guangzhou Asian games?
----It was _____magical and memorable sight.
| A．the; the | B．a; the | C．a ; a | D．the; a |
---Why don’t we go to the new Sichuan restaurant for a meal?
-----_____
| A．Great! I have been expecting that | B．Sorry, but I forget it |
| C．No, I won’t go for it | D．It’s not my pleasure |
-----_____ leave at the end of this month.
-------I don’t think you should do that until _____ another job.
| A．I’m going to; you’d found | B．I’m going to; you’ve found |
| C．I’ll; you’ll find | D．I’ll; you’d find |
He tried his best to solve the problem, _____ difficult it was.
| A．however | B．no matter | C．whatever | D．although |