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Grandma told the story in a very sad____and we were all moved.
A、tune
B、tongue
C、tone
D、ton
【正确答案】：C
【题目解析】：tune 曲调；tongue 舌头；tone 语气；ton 吨句意：奶奶用悲伤的语气讲了这个故事，我们都很感动。