[ Grammar ]
We swam in the pool _______ an hour.
A. for
B. during
C. while
D. no preposition

Random Topics:
Participle Clauses & Cleft SentencesFirst ConditionalFuture Simple TensesFuture TenseAdverbial Clauses of Manner and ResultGrammar and PrepositionsTenses of Verbs - UsagePresent and Past TensesGrammar ModalsGerunds and TensesOther quiz:
Possessive Adjectives and Possessive Pronouns › ViewA: Is that your car in the driveway?
B: No. We parked ________ on the street.
A. theirs
B. ours
C. his
D. hers
Grammar › View
Look! Nick ____________ an email.
A. write
B. writes
C. is writing
Articles › ViewParis is known as . . . City of Light.
A. a
B. an
C. the
D. –
Perfect Modals › View
What a great day! I ________________ (ask) for more.
A. couldn’t have asked
B. must have asked
C. may have asked
D. should have asked
