Thanks to the measures ______ by the local government , the polluted river is becoming clearer and clearer and fish have begun to show up in it.
| A．taking | B．taken | C．to take | D．having taken |
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Thanks to the measures ______ by the local government , the polluted river is becoming clearer and clearer and fish have begun to show up in it.
| A．taking | B．taken | C．to take | D．having taken |
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