help!help!The paper factory ______(be）open for 2 years ,it's polluted many rivers.

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help!help!The paper factory ______(be）open for 2 years ,it's polluted many rivers.
help!help!The paper factory ______(be）open for 2 years ,it's polluted many rivers.

help!help!The paper factory ______(be）open for 2 years ,it's polluted many rivers.
has been

have been

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HELP HELP THE GLOBOLINKS怎么样 help!help!The paper factory ______(be）open for 2 years ,it's polluted many rivers. HELP! Help! Help Help! help, help help help!. help... .help help, help help help help Help!