Running around the corner, Mike () with another boy and both fell down on the floor.
A. crashed
B. smashed
C. collided
D. crushed
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The World Health Organization says that the virus can () from an infected person to another in close contact.
A. transplant
B. transform
C. transport
D. transmit
In children's minds the Spring Festival is () with nice food and presents.
A. related
B. joined
C. associated
D. combined
An economic crisis usually comes in () with serious unemployment in a country.
A. connection
B. relation
C. association
D. combination
The () in big cities is controlled by red and green lights in most cases.
A. traffic
B. transport
C. communication
D. transportation