-You look so worried, what’s wrong?  -More and more people like me begin to worry about the ______ pollution after the haze (雾霾) appeared in Beijing and some other cities in China. 
#28839
A
water
B
air
C
noise
D
Soil
推荐题目
—What class are you in?  —I’m in      .
#29395
A
Class Four, Grade Seven
B
class four, grade seven
C
Grade Seven, Class Four
D
grade seven, class four
 In the small zoo, there is a _______ elephant.
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A
African
B
Asian
C
Australian
D
European