The professor always tried so hard. He had tons of brilliant ideas—but they never worked. Time after time, he would dream up an amazing idea that was sure to change the world—and then it didn't. 【小题1】 "A time machine!" he shouted. The professor's dream wasn't just any old time machine. 【小题2】

But his wife wasn't so sure about the professor's great idea. "It'll never work. You can't make time," she doubted. The professor disagreed. "【小题3】 If you can make money and save money, why can't you do the same with time?"

In his workshop, the professor drew lots of plans for his new time machine. He soon lost track(轨道) of time. He created model clocks of every shape and size. 【小题4】 Finally, he made an amazing discovery—a way to save time and give him lots of extra(额外) time. "I've got it!" he cried. "If I give up my time machine project, I'll have plenty of time for other things!"