—Excuse me, visiting hours are over．It' s time for you to leave．
—I' m sorry, I didn't know the time or I ______ earlier．
| A．will leave | B．would leave |
| C．had left | D．would have left |
Jim was very happy yesterday because he_____ the book that he wanted.
| A．came up with | B．came across | C．came about | D．came out |
This is one of the problems_____ at the meeting at present.
| A．discussed | B．discussing | C．to be discussing | D．being discussed |
I can’t go out with these clothes_____
| A．wash | B．washing | C．to wash | D．washed |
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 |