题文
----Can you tell me ______ live a low-carbon(低碳) life ?
----OK. By using both sides of the paper.
| A．where’s | B．why to | C．when to | D．how to |
----Can you tell me ______ live a low-carbon(低碳) life ?
----OK. By using both sides of the paper.
| A．where’s | B．why to | C．when to | D．how to |
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