[ Grammar ]
Reducing soot emissions _____ helps slow down global warming but also helps protect our health.
A. either
B. neither
C. both
D. not only
Select your answer:
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Tenses › ViewHis health has improved a lot since he ____ doing exercises regularly.
A. starts
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The kite flew high in the sky.
What is high?
A. pronoun
B. noun
C. adjective
D. preposition