Don’t play with birds and chickens, or you may have _________ H7N9 bird flu.A. a B. an C. the D. /

Don’t play with birds and chickens, or you may have _________ H7N9 bird flu.
A. a
B. an
C. the
D. /

C
不要接触鸟和鸡,否则你可能会得H7N9禽流感的.