[ Adverbs of Frequency ]
During summer holiday Ann goes swimming twice _______.
A. a day
B. on a day
C. at a day
D. of a day

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Countable & Uncountable Nouns1st ConditionalPast Perfect Simple & Past Perfect ContinuousHave toReported Speech and TensesVerb & GrammarKnee AnatomySimple present/ past/ future tenseModals of ProhibitionCountable QuantifiersOther quiz:
Prepositions › ViewWe need to invest ______ some new equipment for the hospital.
A. with
B. into
C. in
Grammar - Present Perfect with for and since › View
My boss has been sick ________ two weeks.
A. ever
B. never
C. since
D. for
Grammar › ViewWhere do you live?
Tell me ….
A. where you live
B. where you live do
Grammar › View
In a compound sentence, the comma comes ______________ the coordinating conjunction.
A. after
B. before
C. there is no comma
