[ PAST CONTINUOUS ]
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:
Grammar › ViewThis novel ______________ (write) by Hemingway.
A. is written
B. is wrote
C. were written
D. was written
First Conditional › View
What is wrong with this sentence? “My uncle will buy a car if he have enough money.”
A. “will buy” must be “buy”
B. “have” must be “has”
C. “have” must be “will have”
D. “will buy” must be “buys”
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