One day a famous speaker gave a speech to a crowd of people.

One day a famous speaker gave a speech to a crowd of people.He held up a 21 bill.He asked,"WhOne day a famous speaker gave a speech to a crowd of people.He held up a 21 bill.."What 26 I do this " He asked,and he 27 it on the ground,and started to step on it.He 28 it up.Now the bill was 29 and crumpled."Now who still wants it?" Still the hands went up.本题是完形填空题,其中27题答案dropped/fell都有人选,选dropped的人认为及物动词,选fell的人认为它体现当时钱缓慢飘落的样子,属于不及物动词的及物化．我实在被搞糊涂了,救命啊．