The headmaster has retired but no one knows who will __________ him in the post.
| A．follow | B．succeed | C．remove | D．achieve |
It's an eitheror situation —we can buy a new car this year or we can go on holiday but we can't do ________.
| A．others | B．either |
| C．another | D．both |
The employment rate has continued to rise in big cities thanks to the efforts of the local governments to increase________.
| A．them | B．those |
| C．it | D．that |
If you're buying today's paper from the stand, could you get ________ for me?
| A．one | B．such |
| C．this | D．that |
At our factory there are a few machines similar to ________ described in this magazine.
| A．them | B．these |
| C．those | D．ones |
The traffic on the main streets has a longer green signal than ________ on the small ones.
| A．one | B．this |
| C．that | D．it |