--Which color do you prefer, red or black?
---Red. For red_____a sense of energy and strength.
| A．delivers | B．conveys | C．contributes | D．concentrates |
New technology ______ to make sure that the cars, taxis, buses and trains we use ______ the air.
| A．is used; not to pollute | B．has used; is not polluted |
| C．is being used; do not pollute | D．has been used; to pollute |
Scientists say they have found a way to produce the human body’s own cancer-killing cells through gene treatment, ______ new hope to cancer sufferers.
| A．offering | B．showing | C．taking | D．making |
---- If it hadn’t been raining so hard, I might have been home much earlier.
---- It’s too bad you _____ it. Nancy _____ here and she _____ to see you.
| A．didn’t make; is; was |
| B．won’t make; will be; wants |
| C．didn’t make; was; wanted |
| D．wont’ make; would be; wanted |
The prices are _____ fast these days. Nobody can get the prices _____.
| A．going down; to bring down |
| B．rising; to be bringing down |
| C．raising; bring down |
| D．going up; brought down |
---- How does your second-hand car run?
---- It _____ run all right, but it is being repaired.
| A．has | B．had | C．doesn’t | D．used to |