题目内容
根据图示和提示词，写出恰当的句子，每图一句。
（每小题1.5分，计6分）
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84 . ought to, when 85. have ,two years
86. light pollution, harmful, eyes 87. population, the world
84 . ought to, when
You ought to turn off the lights when you leave a room .
85. have ,two years
I have had the car for two years.
86. light pollution, harmful, eyes
Light pollution is harmful to our eyes.
87. population, the world
The population of the world is 6.5 billion.
