[ Grammar ]
It was really kind …. you to help poor people.
A. to
B. for
C. of
D. on

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Gerunds as objects of prepositionWish - beginnerConjunction and PunctuationVerbs and TensesBasic TensesAdverbial Clauses of Manner and Resultas...as, comparatives, superlativesPresent, Past and Future TenseTo Infinitive or GerundConjunctive Adverbs and PunctuationOther quiz:
Comparative and Superlative Adjectives › ViewI think math is ___________ (difficult) than English.
A. more difficult
B. difficulter
C. the most difficul
D. most difficult
Tenses › View
Miss Linh …………… in this hospital for 20 years.
A. work
B. is working
C. have worked
D. has worked