单项选择题
A．30,000 pounds B．18,000,000 grams C．60,000 ounces D．180,000 kilograms
A．enjoyed being with other sea animals B．killed other sea animals that have come into his pen C．hasn't seen any other animals D．had limited contact with other sea animals
A．die from the cold water in Iceland B．would be happy to return home C．want to be free D．be able to catch his own food