Mark likes playing with model planes. Yesterday, he put his model plane into his school bag<br />and took it to a park near his home. He made his plane fly twice around the park.<br />It flew beautifully in the blue sky. Suddenly a strong wind blew his plane into a tree.<br />So he climbed up the tree to get it back. After a few minutes, Mark finally got his plane back.<br />But just when he climbed down, he fell and was hurt badly.<br />What could he do? He was alone in the park. He saw his plane and had an idea. He took out a<br />pen from a school bag and rode help on the plane. He made the plane fly around the park again and<br />again. Then he heard a voice. His dad came and took him to the hospital.
（1）
Where did Mark go yesterday?
（2）
What happened to Mark when he climbed down from the tree?
