语音讲解：
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　　【对比句】

　　What shall we do to save the dying carp?

　　What shall we do to save the dying cop?

　　【中心词解析】

　　carp:鲤鱼，

　　cop：警官，常用短语cop out逃避，躲开 You've got to take it up. Don't try to cop out of it by telling me you're too busy!"这件事你一定得做,不要推诿说你忙不过来。"

　　【答案选项】

　　a. Put it into the pool.

　　b. Let's call the police.