[ Passive Voice ]
When I came, an experiment ____ in the lab.
A. was being holding
B. has been held
C. was being held
D. has held

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Demonstrative SpeechPassive Modals in Different TensesGrammar - Reflexive PronounsPast Tense and Past ContinuousCOUNT - NONCOUNT NOUNSRelative PronounGrammar-Verbs & Nouns Singular, Plural, GenderModal and Auxiliary VerbsConjunctions and Prepositions1st & 2nd ConditionalsOther quiz:
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Did Amara draw in her notebook?
A. Yes, she did.
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Rick __________ forget his homework yesterday. (-)
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