题文
Today the forests are getting fewer and fewer. We must______ down too many trees.
| A．keep people from cutting |
| B．prevent people from cutting |
| C．stop people cutting |
| D．all the above |
Today the forests are getting fewer and fewer. We must______ down too many trees.
| A．keep people from cutting |
| B．prevent people from cutting |
| C．stop people cutting |
| D．all the above |
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