[ Vocabulary ]
Deforestation and poaching are two things which harm the ____ balance in nature.
A. currency
B. ecological
C. resource
D. service
Select your answer:
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Prepositions › View The train moves _____ the tunnel.
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B. across
C. through
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Our dishwasher broke __________ just a month after the guarantee had expired.
A. down
B. up
C. away
D. into
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