—Chinese people are worried about the food they eat these days.—Yes, the food safety is a serious         in our country. We should try to solve it.
#43256
A
subject
B
program
C
problem
D
opinion
推荐题目
—______ will you come back from Shanghai?    —In one month.
#38935
A
How long
B
How often
C
How soon
D
How fast
Heilongjiang is in the_______of China.
#37867
A
northeast
B
northeastern
C
northwest
D
northwestern