[ Grammar ]
We can prevent global warming by ____________.
A. Reducing pollution in urban areas.
B. Reduce pollution in urban areas.
C. Reduction pollution in urban areas.
D. Reduced pollution in urban areas.

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Tenses and OpinionsConditionals (0 - 1 - 2)Adjectives & AdverbsVerbs � Nouns � Adjectives - AdverbsBecause of & Inspite ofPresent Perfect and Past SimpleModals and Present TensesCoordinating ConjunctionAdverbial Clauses of Manner and ResultTypes of Simple SentencesOther quiz:
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…….the stove when you have finished cooking.
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