It's 5 o 'clock in the afternoon. Tony is still in the classroom. The teacher asked everyone to work for the school (项目), so he's making a (模型)plane. Many classmates have (已经)finished the homework, but Daming hasn't started (还, 尚). He has some problems with his work, and he's busy (搜索)for information about space travel on the Internet. The (最新的)news says that China has ever sent (宇航员)into space by (宇宙飞船). They have been to the (月球) and (刚刚)returned to the (地球) safely. The scientists are working hard in order to (发现) if there's life on other (行星)and stars. But the result shows that no one has (到达) Mars because it is very far away. Daming then has an idea. He will try his best to make his dream come (真实的)—that's flying to Mars one day!
