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________ smog is ________ big problem in ________ big cities.
A. The / Ø / the
B. Ø / a / Ø
C. The / Ø / Ø
D. A / the / the
Select your answer:
Random Topics:
Simple and Compound SentencesContinuous and Perfect TensesPast Simple TensesFamily Members and Present SimplePassive Voice and ModalsParticiple Clauses & Cleft SentencesVerbs and AdverbsModal Auxiliary VerbsGrammar of Conjunctions and PrepotitionsOther quiz:
Vocabulary › View They finally spilled the beans about the status of their relationship.
A. Tell the truth
B. Slip of the tongue
C. Lashed out
D. Kept quiet
Verb Patterns › View
I chose … law at university
A. studied
B. study
C. to study
D. studying