假如你是交换生约翰(John,你出国留学已经有两年了,前天刚回到自己的家乡.回到家乡后,你发现家乡发生了巨变,请你根据下

i am john. i left my country for my study two years ago. last day, i returned.everything changed.i am surprised. the building was more higher than before. lots of markets are on the side of roads.
and the streets are very clean and wide. people live happy lives.they are appiness and healthy.