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They ______________ when somebody rang the bell (to study)
A. were studing
B. was studying
C. were studying

Random Topics:
take, make, doConjunctions and Sequence ConnectorsNounsPast and Present Continuous tensePast Perfect Simple & ContinuousMixed ConditionalCollective NounsTenses and ComparisonsComplex Sentences with Adverb ClausesSentence StructureOther quiz:
Adjective › ViewGladys was ___ to hear of her friend’s misfortune
a. angry
b. sorry
Grammar › View
The children…….in the class now and their parents…..in the building.
A. are-is
B. is-are
C. is-is
D. are-are
Modal Verbs › ViewWe ____________ forget to bring our passports to the airport.
A. can’t
B. shouldn’t
C. must
Conjunction › View
Claire welcomed his guests ______ offered them drinks.
A. And
B. While
C. Until
D. As
