更正在括号处注明!
One day a traveler came to a small town,which he (has改成had) never visited (去掉it) before.
There (is改成was) no doubt that he knew no one there and (everything改成nothing) about the town.Since his hair (加入was) too long,he wanted to have it cut.There happend to (have改成be) two barbershops close to each other on the main street.A shop was tidy,and the barber sat on the sofa,(waited改成waiitng) for his next customer.The floor of the other barber's was full of hair and the barber looked (tiring改成tired) in a chair.He thought the second barber was more (skillfully改成skillful) than the first one.He finally left the (second改成first) shop.
最后一句还有另外一种改法：second不改,而把left改成entered或chose.