单项选择题
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．prohibited B．expensive C．valuable D．allowed
A．the whales travel such a long distance B．there are more whales than there used to be C．the whale bodies are too old to study by the time they are found D．the whales are endangered