[ Grammar ]
Yesterday, Jim was playing the piano __________ his sister was playing the flute.
A. as
B. although
C. while

Random Topics:
Contrast Linking WordsPast Perfect and Past Perfect ContinuousArticles & PrepositionTo Infinitive or GerundQuestion TagAdjectives (-ed / -ing)Present Simple and Present ContinuousPassive SentenceConditional Sentence Type 1Prepositions - ConjunctionsOther quiz:
Grammar › ViewWhat is the past tense form of smile?
A. will smile
B. smiled
C. is smiling
Vocabulary › View
In order to learn, all children must …….. school.
A. have
B. graduate
C. abandon
D. attend