听下面一段独白,回答以下小题。
【小题1】

A．Pink.

B．Green.

C．Purple.

D．White.

【小题2】

A．Recycling is compulsory.

B．Most recycling programs don’t succeed in that people don’t want to deliver rubbish.

C．The primary work of the volunteers is to collect and sort rubbish to the same center.

D．The volunteers will devote six hours a week to dealing with rubbish.

【小题3】

A．To explain why recycling is important.

B．To describe the recycling program.

C．To discuss whether or not recycling should be compulsory.

D．To tell people how to tell different sorts of rubbish cans apart.