如图，∠AOB=110°，∠COD=70°，OA平分∠EOC，OB平分∠DOF，求∠EOF的大小．

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解：∵∠AOB=110°，∠COD=70°∴∠AOC+∠BOD=∠AOB﹣∠COD=40°∵OA平分∠EOC，OB平分∠DOF∴∠AOE=∠AOC，∠BOF=∠BOD∴∠AOE+∠BOF=40°∴∠EOF=∠AOB+∠AOE+∠BOF=150°

Time of the accident	Last week.
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Reason and result of the accident	I rode too ____. My bike hit a big tree. I was in a lot of ____.
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