[ Grammar and Sentence Structure ]
. Choose the correct parallel action structure:
A. From 2010 until 2015, while she work
B. From 2010 until 2015, while she was working
C. From 2010 to until 2015, while she working
D. Since 2010 until 2015, while she worked

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So / Neither / Either / TooSubject Verb Agreement Irregular VerbActive and PassiveDo not or Does notTenses and StructureTenses of VerbsAdjectives & PrepositionPast Perfect Simple & ContinuousVocabulary and TensesPresent/Past/Future Continuous TenseOther quiz:
Narrative, Past Tenses › ViewThe teacher asked if we ____________ her bag.
A. was seeing
B. had see
C. saw
D. had seen
Comparisons › View
Our new house is __________(expensive) than the old one.
A. expensive
B. the most expensive
C. more expensive
D. expensiver
Grammar › ViewShe is ___ student in our class.
A. more noisy
B. noisier
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D. noisiest
Grammar › View
He _______ (write) a letter while she _______ (read) a book last night.
A. wrote / read
B. was writing / was reading
C. writes / reads
D. had written / reads