1.How does Mandy Harvey sing with her musical instruments as a deaf person?
A.By senses of touch. B.By her instrument.
C.By experience. D.By sight.
答案D
解析推理判断题。根据第二段中“She uses visual aids to make sure her musical instruments are tuned correctly and she is singing in the correct pitch(音高).”可知她虽然聋了但是她通过视觉教具确定乐器调音准确,唱歌时音调准确。故选D项。