People should be cautious ______their personal information when surfing the Internet so as to prevent certain computer viruses ______ it.
A.about; to steal |
B.of; stealing |
C.with; to steal |
D.to; from stealing |
The local police were______ by their authorities to _____ the situation as soon as possible.
A.said to; control |
B.ordered; manage |
C.instructed; handle |
D.told; hold |
Only when people have enough to eat and plenty to wear _______ to talk about environmental protection.
A.it makes sense |
B.does it make sense |
C.that it makes sense |
D.do they make sense |
Through thorough investigation, Dr. John Snow was finally able to prove that the outbreak of Cholera _____ people’s drinking of polluted water.
A.was close linked with |
B.closely linked to |
C.was close connected with |
D.was closely linked with |
By careful observation and precise calculation, Nicolaus Copernicus _____ that there is no one center in the universe and the sun is the center of the solar system.
A.believed |
B.thought |
C.concluded |
D.imagined |
______ the aids from the outside, the positive attitude of the disaster-stricken people _____ the key role in the reconstruction of their destroyed towns and villages.
A.Except for; plays |
B.Besides; play |
C.Apart from; plays |
D.Except; play |