A

Yesterday I watched the stand£­ups by the young famous comedian on the stage in the crowded cinema.His performance was so 1.amusing(amuse)  that all the audience burst into 2.laughing(laugh) watching him.

What do you think lead him 3.to_make(make) such great progress in such a short time£¿As we all know£¬there is no such thing as free lunch in the world.Only by 4.holding(hold) on to his aim and working hard on it can he succeed.