When the H1N1 virus____ at first in Mexico, no one had the least idea that it would spread so rapidly throughout the world.
#74817
A
broke off
B
broke down
C
broke out
D
broke away
推荐题目
A pop star, _______drug abuse, may get an 18-month prison term. 
#67835
A
defended against
B
accused of
C
charged of
D
reminded of
It is known that a football team _____ 11 members .
#66767
A
is consisted of
B
is consisting of
C
consists in
D
consists of
The second runway of Hong Kong International Airport was officially ____ on May 26,1990.
#83970
A
put into effect
B
made use of
C
taken notice of
D
put into use