In order to keep fit, he chooses vegetables and fruit in ____to any kind of meat.
| A.comparison | B.preference | C.control | D.advantage | 
Public attention at the moment is ______ on the problem of how to create 
  opportunities for the laid-off workers.
| A.focused | B.paid | C.attracted | D.concerned | 
.His conclusion, ______ on careful research, was acceptable.
| A.to base | B.to be based | C.basing | D.based | 
.Our neighbor has ______ ours.
| A.as a big house as | B.as big a house as | 
| C.the same big house as | D.a house the same big as | 
.She was, ______ thousands of others, interested in this kind of work.
| A.like | B.as | C.for | D.to | 
Those T-shirts are usually $35 each, but today they have a ______ price of $ 19 in the Shopping Centre.
| A.regular | B.cheap | C.special | D.different |