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By ________ time we had just left the office, ________ alarm went off.
A. Ø / the
B. a / an
C. a / the
D. the / an
Select your answer:

Random Topics:
Past and Present ContinuousAdverbial ClauseSubordinate ConjunctionsGerunds and InfinitivesV-ing/to-V-ing form and the to-infinitiveModals and Past TensesModals and VocabularyPossesive Pronouns and Modals of AbilityGerund or InfinitivesOther quiz:
Grammar › ViewHe felt very hungry after work so he suggested ________ dinner early.
A. having
B. to have
C. have
D. had
Grammar › View
It was raining yesterday, so we __________ out.
A. did not go
B. did not went
C. would not go
D. Would not went
