______, and we’ll arrive in Hangzhou, where we can enjoy the beauty of the West Lake.
| A．Another hour | B．An hour later |
| C．After an hour | D．In an hour |
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 |
_______ he lives in a rich family, he started from the lowest position as an ordinary worker to make his living.
| A．While | B．Unless | C．As | D．Since |