[ Grammar and Vocabulary ]
Air pollution is a consequence of fossil fuel burning by motor vehicles, factories, aircraft and rockets.
A. product
B. example
C. harm
D. result
Select your answer:

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Correlative ConjunctionVerb to havePreposition FormQuestion Tags in Verb TensesLinking VerbQuantifiers with NounsWill, Be going to, Present ContinuousVerbs - third personPresent/Past/Past ParticpleTenses and Passive VoiceOther quiz:
Tenses › View. Apply future perfect tense: By the end of this month, they (to finish) the project.
A. By the end of this month, they will finish the project.
B. By the end of this month, they have finished the project.
C. By the end of this month, they finished the project.
D. By the end of this month, they will have finished the project.
Grammar › View
Her sister is the oldest member of the group.
A. adjective
B. verb
C. adverb
D. noun
E. pronoun
