(
C
)1. ______ is a kind of pollution.
A. Water
B. Air
C. Noise
D. Pop music
(
A
)2. ______ usually have poor hearing.
A. People listening to pop music
B. People living near airports
C. People working in the street
D. People living in foreign countries
(
D
)3. The governments of many countries are trying to solve ______.
A. water pollution
B. air pollution
C. noise pollution
D. all of the above
(
C
)4. Many people living near airports become deaf, because of ______.
A. air pollution
B. water pollution
C. noise pollution
D. music pollution
(
B
)5. Many teenagers like to listen to ______.
A. noise
B. pop music
C. classical music
D. jazz