--Is it all right if I use your car ?----
Some special projects are ________ to protect our environment, so we may be _____ to having a clean and beautiful home in the near future.
Seeing the stranger _______, the frightened baby couldn’t help ______ crying.
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.
The water and soil conservation project resulted in farmers ______ the crops on the farmland _____ trees and grass.
People have the belief ______ factories should produce fewer things from raw materials, ______the supply is growing smaller and smaller.