更多"It has been proved all of the follo"的相关试题:
[单项选择]Doctors have proved the following EXCEPT that ______.
A. smiling does good to health
B. laughter can be tolerated
C. there is a way to reduce pain
D. laughter can work the muscles in the feet
[单项选择]The prisoner has been ______of many privileges that average citizens enjoy.
A. ensured
B. informed
C. deprived
D. convinced
[单项选择]Cloning has been criticized for all the reasons EXCEPT ______.
A. usefulness in genetics
B. premature aging
C. its effects on the experimental animals
D. safety reasons
[单项选择]What has NOT been controlled at all as regards water pollution
A. Industrial polluters.
B. Sewage.
C. Rain runoff.
D. Toxic substances.
[单项选择]Once a decision has been made, all of us should ______ it.
A. direct to
B. stick to
C. lead to
D. refer to
[单项选择]The situation in Africa has changed so rapidly that this map is already _______
A. up to date
B. out of date
C. out of place
D. out of sight
[单项选择]It has been decided that all the students ______ stay in the classrooms even on Saturday evenings in case they go to Internet bars.
A. must
B. can
C. need
D. shall
[单项选择]As （ ） known to all, language has been developed through social contacts.
A. is
B. are
C. though
D. if
[单项选择]My nephew has been to Iraq and Iran as well as all of Europe. By the time he's twenty-five, he ______ almost everywhere.
A. will be
B. will have been
C. would have been
D. would be
[单项选择]All ______ has already been done.
A. can be done
B. should be done
C. that can be done
D. what should be done
[单项选择]When we watch a play or a film, we all realize that the characters are sometimes
A. imaginative
B. imaginable
C. imagined
D. imaginary
