完形填空、求解、One day a young man comes to the greatest a_______ D

完形填空、求解、
One day a young man comes to the greatest a_______ Da Vinci to learn drawing.Da Vinci gives him an egg and tellshim to d_______ it.The young man works quickly and shows it to him."Draw it a_______",says Da Vinci.
The young man draws another egg,but Da Vinci makes him do it again and again.The young man is very angry.
"I can draw an egg i______ two minutes.Why do you keep me waiting?Please teach me how to draw."
Da Vinci smiles and says,"Yes,you can.But it t_______ years to draw a perfect egg."