The solution to this problem is Little

  本讲为2005年下半年新的教学内容，请对照教材听录音！
   
  I heard him _sing_ (sing).
   
  I don’t like letters _written_ (write) in pencil.
   
  Such programs could teach the local people how __ (select__ (export)
   
  the environment needed for the survival¹ of the many rare species² of animals and plants, as well as of the Indian tribes³ that live in the rainforest, could be preserved.
   
  The local people could also be taught to earn more money by cutting the selected trees and making them into furniture on the spot.
   
  
  people in the richer countries of the world could also help save the rainforests by using wood-derived products such as paper more carefully and by recycling used paper products to help reduce the demand for newly cut wood.
   
  The solution to this problem is
  Little

Less