[ Grammar and Vocabulary ]
Most of the air pollution results _____ the burning of fossil fuels, motor vehicles, factories, aircraft and rockets.
A. in
B. to
C. on
D. from
Select your answer:

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Grammar › ViewYou’d better ________________ used to these ways of doing business.
A. to get
B. get
C. getting
Vocabulary and Grammar › View
. What is the author’s perspective?
A. Recycling should be mandatory worldwide.
B. Recycling is easy and everyone should help a little.
C. Recycling doesn’t matter because the impact is small.
D. Recycling is pointless and no one should do it.
