The baby had ___ quietly for two hours when it awoke.
Participle & Appositive Adjective vs. AdverbPrincipal vs. Principle GerundsSimple Present ProgressivePossessive NounsMixed GrammarAdjective / Noun + to InfinitiveRelative & Interrogative Pronouns
Other quiz: Grammar
A. Present Perfect Simple
B. Past Continuous
C. Present Continuous
D. Past Perfect Continuous
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