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问其故
____
____①意外的事；②故意；③旧友；④原因
卓有成效
____①效果；②仿效；③为别人或集团献出（力量或生命）
闻所未闻
____①听到；②听见的事情；③有名望的；④嗅
How about going to Hang Kong? It has ______for everyone.
My bike is____(broken, broke).
After studying in a medical college for five years，Jane________her job as a doctor in the countryside.
