[ Vocabulary ]
During the Covid-19 pandemic, ___ from traffic decreased in many cities.
A. emissions
B. fuels
Select your answer:

Random Topics:
Grammar - ConnectorsModals VerbGrammar for IELTSWas & Were QuestionsPrepositions of Place and TimeSimple PastClauses of ReasonDemonstrative PronounsCoordinating ConjunctionsQuestion tag and + - AgreementOther quiz:
Present Tenses › ViewA: … you talked to Mr. Potter? B: No, I ….
A. Had / haven’t
B. Have / haven’t
C. Have / didn’t
D. Did/did
Grammar › View
They believe that it is best to be prepared for any kind of weather.
A. Adjective clause
B. Adverb clause
C. Noun clause