听下面一段对话，回答以下小题。

【小题1】Where is the man going?

A．To the supermarket.

B．To the recycling center.

C．To the train station.

【小题2】What color box does the man use for plastic?

A．Black.

B．Blue.

C．Green.

【小题3】What did the woman think of recycling at first?

A．Unnecessary.

B．Meaningful,

C．Easy.

【小题4】What can we learn from the conversation?

A．The man’s mother will start recycling.

B．Most people still ignore the importance of recycling.

C．The man thinks a small act can make a big difference.