[ Tenses ]
He ___ his keys while he was closing the office and locking the door.
A. forgot
B. forgets
C. forgetting
D. has forgotten

Random Topics:
To infinitive - GerundMesopotamia VocabularyTransition WordsDependent PrepositionMuch, many, a lot of, a few, a littleExclamationPhrase or ClausePresent Simple or Present ContinuousMixed TensesPast Perfect TensesOther quiz:
Grammar › ViewLast week, Beth ______ to the movies with me, but this week Tammy _______.
A. go/went
B. goes/go
C. went/will go
D. goed/will go
Coordinate Conjunction › View
She has some shoes, … none of them are comfortable for brisk walking.
- and
- but
- nor
- so
Tenses › View
He should’ve been a soldier but he was failed
A. Past Future Perfect Tense
B. Past Perfect Continuous Tense
C. Future Perfect Tense
D. Future Perfect Continuous Tense
Grammar › View
‘ a haunted house in Connecticut?’ ‘No, I think she had one in California.’
A. Did Ms Winchester use to own
B. Would Ms Winchester own
C. Did Ms Winchester get used to owning
D. Is Ms Winchester used to owning
