If everyone pours less polluted water into Dianchi Lake, it will be _______.
| A．deeper and deeper | B．cleaner and cleaner |
| C．dirtier and dirtier | D．wider and wider |
If everyone pours less polluted water into Dianchi Lake, it will be _______.
| A．deeper and deeper | B．cleaner and cleaner |
| C．dirtier and dirtier | D．wider and wider |
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