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26．--Our environment is getting Worse than before． --You’re right．But thanks to Earth Day, people have done more and more useful things to protectthe earth since Earth Day ．A．is started B．was started C．has started 【查看更多】

 

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--Our environment is getting Worse than before．

--You’re right．But thanks to Earth Day, people have done more and more useful things to protect(保護(hù))the earth since Earth Day               ．

A．is started              B．was started          C．has started

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