[ Grammar ]
It was nice of them_____ me clean my house after the party was over.
A. for help
B. help
C. for helping
D. to help

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Future or PastUncountable NounsFirst Conditional & Future TensesArgumentative VocabularyDistinguishing Future TensesGrammar (was, were, could, could not)Comparative AdverbsSimple Present VS Present ContinuousWord Form & Verb TenseAdjective, Adverb, and Noun FormsOther quiz:
Regular and Irregular Verbs › ViewThe past tense of: do
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Prepositions › View
She knows a lot ___ ancient history.
A. for
B. to
C. about
D. with
E. in