----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
D