Mrs Wang decided to make a trip to Beijing.When she told her son about her decisionhe was so overjoyed that he jumped up.

They began to pack their luggage.When the day camethe son became worriedfor noboday would take care of his flowers.They would die if they were not watered.Suddenly a good idea came to his mind. "Mum"he said to his mother "we can use a piece of cloth to take care of the flowers". 

He showed her mother what he meant by putting one end of the cloth into the basin full of waterand the other end into the flower pot.Three days laterwhen they came back from Beijing the flowers were still alive and even started to bloom.