26.A:Hi,Mingming!(1)
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B:This weekend?I'm going to plant trees with my family in the park.
A:Wow!That's really meaningful!Planting trees helps to protect our environment.
B:(2)
.And I think there are a lot of things we can do to protect the earth.For
example,we'd better ride bikes instead of driving cars to school.
A:Yes,we can also help clean the river near here.(3)
.But now it's full of rubbish.
B:No wonder it smells terrible these days!(4)
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A:Good idea!Then I will call on more friends to clean the river next Sunday!
B:That's a deal!The more people we have,the cleaner it will be.
A:(5)
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B:Let's meet at 2 p.m.in Renmin Park.
A:OK!I believe the city will be more beautiful with our effort.