下列每句均有一处错误，找出该错并按下列要求予以改正。
该行多一个词：把多余的词用斜线(＼)划掉，在该行右边横线上写出该词，并也用斜线(＼)划掉。
该行缺一个词：在缺词处加一个漏词符号(∧)，在该行右边横线上写出该加的词。
该行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
小题1:The fans were disappointing to find the movie star had left when they arrived at the airport.                                           ------
小题2:It was really smart for you to work out the maths problem so easily._______
小题3:The maglev travels very fast and it uses fewer energy.            ______
小题4:His father is used to smoke a lot,but he is no longer a smoker.     _______
小题5:In the last twenty years,seven Canadian scientists won the Nobel Prize._____