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Exhaust fumes from vehicles can gradually harm the Earth’s _____.
A. natural resources
B. atmosphere
New regulations are needed to _____ factories from releasing toxic waste into rivers.
C. prevent
D. conserve
People should _____ energy by turning off appliances when not in use.
B. pollute
A. conserve
Many ocean creatures are disappearing due to _____.
C. deforestation
D. overfishing
Constant noise from construction results in _____, affecting people’s health.
D. climate change
C. noise pollution
Switch off the TV _____ you finish watching it.
A. as soon as
C. while
_____ you print a document, think if it is really necessary.
A. Until
C. After
Do not enter the area _____ the authorities say it is safe.
C. until
B. after
_____ you recycle regularly, you help protect the environment.
A. Before
B. When
Wow, this (20) _____ is huge. There are so many different shops here.
D. shopping centre
A. boutique
Oh look, that electronics store has a big (21) _____ today.
C. price
A. sale
Great! Maybe we can find a good (22) _____ on headphones.
A. market
C. discount
Let me (23) _____ these to check how they feel.
B. pay by
A. try on
If I like them, I’ll (25) _____ credit card.
C. try on
D. pay by
I _____ purchase items online because I prefer seeing them in real life.
D. always
C. rarely
He _____ reads reviews before ordering products online.
C. never
A. always
