第1题: [单项选择]Mary is a conscientious student; she works very hard and is ______ to her teachers. A. respected B. respectable C. respectful D. respective 参考答案:C 答案解析:respected意为“受尊敬的”;respectable意为“值得尊敬的,可敬的”;respectful意为“表示尊敬的,恭敬的”;respective意为“各自的,各个的”。