. The number of articles published on smoking ______ amazing.
| A．is | B．are | C．were | D．have been |
It was a difficult job for him.He had tried everything but it made little ________.
| A．use | B．good |
| C．difference | D．result |
In his absence, I would like to thank all concerned on my brother's ________.
| A．behalf | B．part |
| C．business | D．interest |
You look very beautiful in this dress and there is only one of this kind left here. I wonder if you would buy ________.
| A．one | B．it |
| C．some | D．any |
Jogging every morning is ________ good habit. Stick to it, and you'll make ________ great progress.
| A．a; / | B．a; a |
| C．the; a | D．/; / |
At the meeting the chairman appealed to us to take ______ full advantage of the chance of hosting the coming YOG to create ________ better Nanjing.
| A．a; a | B．the; / |
| C．/; / | D．/; a |