Mark the letter A, B, C, or D to indicate the correct answer: It was nice of youĐoạn văn27/40Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer. It was nice of you to give me the present. Thank you” Ben said to Mary. Ben thanked Mary__________the present.of giving himfor giving himit had been nice of her to give himthat she had been nice to give himGiải thíchĐáp án C.