Science and technology is changing fast nowadays. I bought this MP3 player at the beginning of this year but now it's out of ________.
| A．date | B．order | C．use | D．sight |
He is the only one of the students who _____ a winner of scholarship for three years.
| A．is | B．are | C．have been | D．has been |
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 |