You have____(probable) never heard of Amy Hayes, ____she is a most unusual woman. She never throws away things we____(need) any more. She has always thought about how these things____(put) to good use. She thinks that nothing is a waste. The windows and doors of her house come from old buildings around her town ____were pulled down. The top of ____is an old boat____(turn) upside down. And the gate is made ____rocks and old glass bottles. Amy isn't the only one who is ____(recycle). Jessica Wong uses old clothes to make bags. She ____(do) this for a few years. Her bags are cute and useful.

如图，在菱形ABCD中，∠ADC＝72°，AD的垂直平分线交对角线BD于点P，垂足为E，连接CP，求∠CPB的度数．

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