[ Grammar ]
The witness refused ____________ any of the questions asked by the police.
A. to answer
B. answering
C. to be answered
D. to answering

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PrepositionUnderstanding Product Packaging and TensesRelative - ConditionalNoun, Quantifiers and SuffixesPrepositionsQuantifiers, Countable and Uncountable NounsInfinitives and ING FormsPassivisationDescribing WordsActive-Passive VoicesOther quiz:
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