[ Tenses ]
I … on an airplane many times.
A. have flied
B. have flown
C. flown
D. flied

Random Topics:
So - Too - Either - NeitherHow many / How much - Is there / Are therePassive of Modal VerbsVerbs and TensesIntermediatePrepositions after Verbs and AdjectiveModals with Perfect InfinitivePersonal Pronouns and VerbModal Verbs for PossibilityComparativesOther quiz:
Adverbial Clauses of Reason / Cause › ViewThe teacher explains the lesson very clearly _______ every student can understand.
A. so
B. so that
C. for
D. as
Narrative Tenses › View
Peter is very lazy. He always copies his friends’ homework and never does it by _______________.
A. him
B. themselves
C. yourselves
D. himself