[ Grammar ]
We keep the …………… copies of all our reports in a special master file.
A. primitive
B. characteristic
C. original
D. elder

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Grammar and PrepositionsNarrative, Past TensesGrammar, Literature, and VocabularyIn/On/At + TimeEssential and Nonessential ClausesRelative PronounSimple, Compound, Complex SentencesGrammar : can, could and be able toSimple PastGrammar and PunctuationOther quiz:
Vocabulary › Viewa reason for doing something, especially one that is hidden or not obvious
A. motive
B. sleuth
C. complexity
D. detective
Grammar › View
If only they _____ in the building when the bomb exploded.
A. hadn’t been staying
B. hadn’t stay
C. didn’t stay
D. weren’t staying