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He will be back in _____ hour.
A. a
B. an
C. the
D. no article

Random Topics:
Correlative Conjunction & Complex SentencesKinds of SentencesPersonificationVerb & GrammarPassive Modals in Different TensesSimple Past TenseWord Form & Verb TenseCommon ErrorNouns, Pronouns, Antecedents, and Singular and PluralPresent Perfect Simple & Present Perfect ContinuousOther quiz:
Conditional Sentences › ViewI would have visited you before if there _____ quite a lot of people in your house.
A. hadn’t
B. hadn’t been
C. wouldn’t be
D. wasn’t
Idioms › View
Pull the ………. over other people’s eyes.
A. wool
B. silk
C. cotton
Gerunds and Tenses › View. Which sentence correctly describes an action interrupted by another?
A. While I walked home, I saw an old friend.
B. While I was walking home, I saw an old friend.
C. While I was walk home, I saw an old friend.
D. While I walking home, I saw an old friend.
Preposition of Time › View
Are we going to the party _______ Friday?
A. on
B. in
C. at
