Ⅳ. Reading Comprehension (20%)
 1. Philip is a boy who is working hard to save the earth. In 1997, at the age of nine, he learned in science class that the earth was sick. He believed that even children could do something to help, so he started planting trees. Three years later, one million trees were planted in his country by people who liked his idea. Today, thousands of children from over70 countries have joined Philip in his plan to plant trees. They want to plant one million trees in each country of the world. “Stop talking. Start planting,” say these children.
【題組】31. What did Philip decide to do for saving the earth?
(A) to know more children
(B) to save one million dollars
(C) to travel around the world
(D) to plant trees