.- Can I smoke here?
- Sorry. We don’t allow _____ here.
| A．people smoking | B．people smoke | C．to smoke | D．smoking |
Some special projects are ________ to protect our environment, so we may be _____ to having a clean and beautiful home in the near future.
| A．on the way; under way | B．under way; on the way |
| C．in the way; on the way | D．on the way; in the way |
Seeing the stranger _______, the frightened baby couldn’t help ______ crying.
| A．burst in; bursting into | B．burst into; burst out |
| C．break in; bursting out | D．burst into; burst out |
Since no one really knows what effects the GM food might have _____ us humans, many countries think that they should be cautious _____ this new technology.
| A．about; with | B．on; to | C．in; to | D．on; with |
The water and soil conservation project resulted in farmers ______ the crops on the farmland _____ trees and grass.
| A．to replace; with | B．to replace; for | C．replacing; with | D．replacing; for |
People have the belief ______ factories should produce fewer things from raw materials, ______the supply is growing smaller and smaller.
| A．which; that | B．that; of which | C．that; whose | D．which; whose |