小题1:C
小题1:C
小题1:A
小题1:C
小题1:B
小题1:根据people in Bed ZED have done many things. They recycle their paper, plastic, glass and other daily things. 描述，可知选C。
小题1:根据The rainwater is collected for use in the toilets.描述，可知选C。
小题1:根据use public transportation if they work far away.描述，可知选A。
小题1:联系下文描述，可知指的是保护环境的意思。故选C。
小题1:根据We all know that thinking green is sometimes the most difficult thing to do, 描述，可知选B。