[ Word Form & Verb Tense ]
People can develop health problems and become ill if they breathe _____ air
A. pollution
B. to pollute
C. polluting
D. polluted
Random Topics:
Grammar - PunctuationGrammar, adverbs of frequency placementGrammar - to beObject PronounPast ModalsReflexive Pronouns & Modal VerbsDegrees of AdjectivesIntermediate PrepositionsPast simple vs Present perfectPast Perfect and Past Perfect Continuous TenseOther quiz:
Grammar › ViewChoose whether it is a simple, compound, or complex sentence.
Some artists specialize in designing typefaces that are used in books, magazines, and newspapers.
A. simple
B. compound
C. complex
Conjunctions › View
I read news online regularly …. know what’s happening in the world
A. for
B. in order to
C. in order that
Grammar & Vocabulary › ViewWhich sentence is wrong?
A. I visited the Louvre museum.
B. I visited my best friend.
C. I visited a very popular city.
D. I visited a walk.
Grammar › View
She promised_________me a new guitar.
A. buying
B. to buying
C. buy
D. to buy