Recently a survey _______ prices of the same goods in two different supermarkets has caused a heated discussion among citizens.
A. comparing B. compared C. compares D. being compared
The engine of the bus was _________，and the bad weather added to the worries of the passengers.
A. in vain B. in good condition C. out of work D.out of order
In some of the war-torn countries temporary homes had to be put up quickly to ___________ the
homeless.
A. take up B. take in C. keep up D. keep out
For some time the expert __________ people of the health risks caused by passive smoking. He
says he won't stop until all the smokers around him decide to quit smoking.
A. is warned B. is warning C. has been warning D. has been warned
The news _______ Barack Obama won the Nobel Peace Prize is _______ surprised the world.
A. that；what B. which；that C. that；which D. /；how
After inspecting the building, specialists discovered some faults that otherwise ___________.
A. were overlooked B. would be overlooked
C. had been overlooked D. would have been overlooked
