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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:
Vocabulary › ViewWhat does it mean to be ‘pious’?
A. holy
B. wicked
C. sinful
D. evil
Past Perfect & Past Simple › View
After we…………………………… to the concert we ate at a snack bar.
A. had been
B. were
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
