[ Grammar and Vocabulary ]
He took a short nap after he ______ for a few hours.
A. had studied
B. has studied
C. was studying
D. will have studied

Random Topics:
Sentence Structure and PunctuationModal PerfectVerbs of movementPrepositional PhrasesPast Simple VerbsAdjective ClausesAdverbs of How Something is DonePast Tense vs Future TenseModals and InversionStative Verbs and TensesOther quiz:
Grammar › ViewYesterday, Peter_________do that exercise alone. So, he called me for help.
A. could
B. couldn’t
Vocabulary and Grammar › View
Select the opposite of ‘scarce’:
A. Rare
B. Abundant
C. Limited
D. Sparse
Grammar › ViewThey __________ us that we were wrong.
A. convinced
B. persuaded
C. both
Modal Verb › View
_______ we meet at the cinema?
A. Shall
B. Must
C. Have to
D. Need
