[ Tenses ]
We ________ the annual prom when the lights went out.
A. were celebrating
B. have celebrated
C. celebrate
D. are celebrating

Random Topics:
Second Type ConditionalPast ModalsGrammar: SyntaxVerb Tenses and UsageFuture - be going toModal Auxiliary VerbsSentence Structure and ConjunctionsSimple Present - Negative & InterrogativeInterrogative PronounsPrepositions of Time & PlaceOther quiz:
Grammar and Vocabulary › ViewHow long ______________ studying food processing techniques for the company when he retired?
A. did Martin work
B. had Martin worked
C. had Martin been working
Prepositions › View
Jee Seng leaned his bicycle ________ the fence and went into the house.
A. across
B. through
C. among
D. along
E. against
Grammar › ViewThere were also some walls _____ with these shells.
A. decorate
B. decorated
C. decorating
Grammar › View
The doctor said that Ken _______ stop eating junk food if he wants to keep fit.
A. has to
B. have to
C. doesn’t have to
D. can’t
