单项选择题
A．Fish. B．Milk. C．Animal meat. D．Vegetables.
A．shut themselves up in igloos B．hunt seals on ice C．fish by making holes in the ice D．raise reindeer for its milk
A．students will be able to express their ideas more freely B．teachers will have less trouble in correcting mistakes C．students will have more confidence in writing D．students will learn to be independent of teachers