[ Past Continuous Tense ]
Susan ______(play) the piano when someone knocked on the door.
A. was playing
B. is playing
C. play
D. played

Random Topics:
Adjectives with PrepositionPresent Progressive (Future)Employment VocabularySimple Past - Irregular VerbsConditional Sentences and AdverbsPast Perfect TenseModal RequestsPresent Simple Tense PassivePresent Perfect vs Past Simple TensePassive Voice - Present Simple and Past SimpleOther quiz:
English Article › ViewMy father bought a car. ____ car is blue.
A. A
B. An
C. The
Prepositions › View
James is rather good _______ Mathematics.
A. at
B. in
C. on
Tenses › ViewThe bus to Singapore ____ at nine in the morning.
A. left
B. leave
C. leaves
D. leaving
Subject Verb Agreement › View
Ten thousand pounds ……………. a lot of money.
A. are
B. is