[ Grammar & Vocabulary ]
Wildfires produce large amounts of smoke and ______ that affect air quality.
A. pollutants
B. symbols
C. leftovers
D. convenience

Random Topics:
Vocabulary and PrepositionsTenses & Conditional SentenceComplex SentencesConditional 0Active Voice-Present tenseIf ConditionalsGrammar: is/are/was/werePast Simple and Past Continuous TensesGrammar - ConnectorsAdverbs, Modals, Preposition of timeOther quiz:
Grammar › ViewPresent Perfect Simple: He (finish) his homework already.
A. has finished
B. had finished
C. have finished
Grammar › View
I was absent from school yesterday … I had a fever.
A. nevertheless
B. why
C. that’s because
D. that’s why
Past Modals › ViewA: My favorite band played in our city last weekend but the tickets were all sold out!
A. B: You must have been very disappointed!
B. B: You were very disappointed!
C. B: You can’t have been very disappointed!
Grammar › View
What is the subject in this sentence: My dog barked loudly.
A. barked
B. loudly
C. My dog
D. barked loudly
