talk about some recent changes in your hometown

I used to live in a small town with no tall buildings。The street was narrow。There was a river outside the town。We can see many different kinds of fish swimming in the clear water。以前我住在一个小镇,没有高楼建筑。街道很窄。小镇外有一条小河。有各种各样的鱼在清澈的水里游着。Now,great changes have taken place in my home town。There are many tall buildings and department stores。People go out by buses or cars。But with the development,the fish disappeared gradually。Air and water have been badly polluted。现在,小镇发生了巨大变化。有很多高楼和百货大楼。人们出去都乘巴士或者自驾车。但是随着这个发展,鱼逐渐消失。空气和水都被污染了。I think we must do something to stop pollution and make home town more beautiful。我想我们应该保护环境,令我们的小镇更美丽。