One day tow Young Pioneers were playing on thy playground.Suddenly they found a tree bent down.They decided to save the tree.One of them took out her handkerchief without hesitation.The other hold the tree upright.They tied the tree tightly to a stick and put up a sign.It read,"Take care of trees."It was very hot,and after they finished working,they felt very tired.Their teacher was pleased with what they had done and said they were good Young Pio-neers.