[ Tenses ]
Complete the sentence to correctly describe an interrupted action in the past: I _____ my homework when the power suddenly went out.
A. did
B. was doing
C. have done
D. had done

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Grammar & VocabPast Perfect Tense and Past TenseGrammar and ReadingApostrophes and GrammarGrammar and PrepositionGrammar - must & have toVocabulary and DefinitionsEs and SVerbs & Verb TensesProgressive TenseOther quiz:
Adverbs › ViewIt is all ……… you.
A. because of
B. because
Grammar › View
Make a list of countries _____ population is greater than 20 million.
A. that
B. whose
C. which
D. who
Grammar › ViewIt’s _______ cold to go outside without a jacket
A. too
B. enough
C. very
D. so
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The building was damaged recently ……………… heavy storms.
A. because
B. although
C. by
D. so
