反馈有哪些种类？

Once, the famous scientist Einstein travelled to many places in America to give lectures. He travelled in a __1__, and soon made friends with his driver.
Each time Einstein gave the lecture, his driver __2__ sat in the front row and listened to him very carefully. The __3__ lecture was given so many times that the driver learned it well enough to give it himself.
One day, when Einstein was __4__ about it, he asked the driver to give the lecture for him in a small town.
That evening, both Einstein and the driver went into the lecture room. __5__ there had seen Einstein before. When the driver took his place, everybody applauded (鼓掌). Then he began the lecture. __6__ it was over, the people warmly applauded. The driver turned to look at Einstein. Einstein nodded with a smile on his face.
When they began to leave the lecture room, a man __7__ them and asked the driver a very
__8__ question. The c river listened carefully, then he __9__ and said the question was interesting but really quite easy. To show how easy it is. I'll ask my __10__ to answer it," said the driver.

小题1:	A．bus B．train C．plane D．car

小题2:	A．always B．never C．sometimes D．hardly

小题3:A. different  B. same       C. uncomfortable  D strange
小题4:A. spoken     B. told       C. said            D shouted

小题5:	A．Somebody B．Everybody C．Nobody D．Anybody

小题6:	A．If B．Although C．However D．When

小题7:	A．carried B．believed C．stopped D．pleased

小题8:	A．difficult B．easy C．relaxing D．perfect

小题9:	A．smiled B．cried C．refused D．jumped

小题10:

A．student B．driver C．teacher D．uncle