单项选择题
A．prohibited B．expensive C．valuable D．allowed
A．Don’t judge a person only by his behavior. B．People need understanding. C．Conditions can change a man. D．Anyone has his strongpoints (优点) and shortcomings.
A．The Human Sense of Smell B．Dogs Have Poor Eyesight C．Sense of Smell D．Dogs Have Excellent Sense of Smell