[ Tenses ]
A clean surrounding ____________ a healthy living.
A. ensured
B. ensures
C. will ensure

Random Topics:
Past Perfect Simple & ContinuousArticles and DeterminersNumbersFrequencyLinking VerbGrammar - direct/indirect objectsConjunctivesSimple present/ past/ future tenseCommas and Subordinating ConjunctionsSimple and Progressive Verb TensesOther quiz:
Tenses › ViewMy mother is busy at the moment. She ______________ her favourite programme.
A. is watching
B. has watched
C. watched
D. watches
Conjunctions › View
We can visit the library ____ go to the computer room.
A. and
B. but
C. or