根据所给音标，完成句子
1. Friends of the Earth look ________／'ɑːftə／the environment.
2. The environment is all the things ________／ə'raʊnd／us.
3. We have air pollution, water pollution and ________／lænd／pollution.
4. Friends of the Earth help keep the ________／'envaɪrənmənt／clean.
5. Please pick up the rubbish and put the rubbish into the rubbish ________／bɪn／.
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