请教下七年级上册英语习题14.　帮帮着急的人吧,

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• 请教下七年级上册英语习题14.　帮帮着急的人吧,
• 请教下七年级上册英语习题14.　帮帮着急的人吧,
• 英语完形填空,超难,Three hundred and seventy-five million years ago,the weather became very hot.Many years went p__1__ with little or no rain.The lakes became d__2__,and many fish died without water in the lakes.Some kinds of fish were a__3__ to move to the new places with water.These fish could live b__4__ on land and and in the water.In the n__5__ four or five million hundred years,they slowly c__6__ and became the first animals.They lived sometimes on land
• 求y=sin（x-π/6）cosx的最小值