用括号内所给动词的适当形式填空，必要时可加助动词或情态动词。
One day when the famous American scientist Edison _____ (walk) on his way home, a young man
stopped him and required ______ (have) a word with him. Edison _____ (accept) his request.
The young man asked, "How, Mr. Edison, _____ you _____ (invent) so many things and achieve
your fame?"
The scientist said, "It seems that you have been thinking of ______ (become) famous every day."
The young man nodded, "Yes, I _____ (be) dreaming of being a person as famous as you. Every
minute I _____ (think) of you how to become reputable. I don't know when I can achieve my fame."
Edison told him, "Don't worry, young man. If you want _____ (be) a famous man this way, you
_____ (have) to wait until you _____ (die)!"
"Why should I?" the young man was _____ (puzzle).
Edison said, "What you dreamed is actually a high building. You never think of how _____ (build)
it with bricks. Thus the building will never come into reality. However, your story _____ (serve) as a
mirror. You _____ (remember) because of your idleness and laziness. They will often speak of your name
while they_____ (give) warnings to their children. Aren't you a notorious person by then?"
The young man _____ (feel) very shameful and said, "I knew I ______ (not work) hard before, but
I'll build my building."