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
The big company should be ready to ______ many talents who can often _____ a new idea for increasing sales.
A．take in; come across B．take on; come on
C．take on; come up with D．take in; come up with
Because of the bad management, this restaurant was not _______ it was 10 years ago.
A．half as good as what B．as half good as that
C．as good as half what D．half as good as that
