H1N1 control and prevention is a to China as well as the whole world．
#5835
A
surprise
B
challenge
C
reaction
D
threat
推荐题目
The happy _______ of children playing in the garden disappears, and it is quite again.
#5930
A
scene
B
scenery
C
scary
D
Place
There’s no_____from my bedroom window except for some factory chimneys.
#7193
A
view
B
scene
C
sight
D
look
Most air pollution is caused by the burning of ____ like coal, gas and oil.
#7518
A
fuels
B
articles
C
goods
D
products
You may go to the ________ if you want to watch Peking Opera.
#7128
A
library
B
supermarket
C
theatre
D
bookshop
Scientists are hoping for a _____ in the search for a cure for cancer.
#6618
A
breakthrough
B
break
C
deal
D
progress