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They try to get some vigorous exercise at least three times ______ week.
A. –
B. a
C. an
D. the

Random Topics:
AdverbTenses and PronounsCorrelative ConjunctionAdverbs (manners & modifiers)Prepositions & Prepositional PhrasesPossessive Pronouns and Adjective PronounsModal Verbs and ConditionalsWould rather/ would prefer/ would likeComparatives - SuperlativesPresent Simple TenseOther quiz:
Clauses and Conjunctions › ViewUse a coordinating conjunction to combine: ‘She loves reading. She loves writing.’
A. She loves reading and writing.
B. She loves reading but not writing.
C. She loves reading nor writing.
D. She loves reading or writing.
Comparison & Modal Verbs in Passive Voice › View
Commercial centres are ________ they were many years ago.
A. as popular than
B. more popular than
C. the most popular
D. most popular than
Tenses › ViewMy mom_____ in the market now.
A. was
B. does
C. has been
D. is
Some vs. Any › View
I don’t have __ clean shoes to go to the concert
a. some
b. any
