Two thirds of the population of the village ________ farmers. The number of them ________ about 2,000.
| A．is, is | B．is, are |
| C．are, are | D．are, is |
My cousin told me that he could eat three big apples _____.
| A．at time | B．at a time |
| C．some time | D．some times |
You will realize what I have done for you _____.
| A．any day | B．everyday |
| C．one day | D．a day |
As teenagers, we should study hard _____surf the Internet all day.
| A．rather than | B．instead of | C．not just | D．more than |
Please _____ your homework _____ before you hand it in.
| A．look; for | B．look; after | C．look; out | D．look; through |
An online magazine makes us ______ more paper.
| A．to save | B．to use | C．save | D．use |