Special attention should be paid _______ our earth from _______.
| A．to protect; being polluted |
| B．to protecting; being polluted |
| C．to protect; polluting |
| D．to protecting; polluted |
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Special attention should be paid _______ our earth from _______.
| A．to protect; being polluted |
| B．to protecting; being polluted |
| C．to protect; polluting |
| D．to protecting; polluted |
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