[ 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:
Modal Verbs › ViewRecognize the modal verb in context: “We should have left earlier to avoid the traffic.”
A. should
B. have
C. left
D. traffic
Grammar & Vocabulary › View
Choose the correct sentence:
A. He has sandwiches for lunch at work never
B. He has never sandwiches for lunch at work.
C. He never has sandwiches for lunch at work.
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