写了一篇英文对话 ,麻烦大神们看看有没有语法、搭配错误,谢谢

写了一篇英文对话 ,麻烦大神们看看有没有语法、搭配错误,谢谢
王=-Hi, XXX,long time no see. How is everything going?
菜-Not so good.
王=-Whathappened?
菜-You know thefinal exam is coming and I’m a little worried about my results.
———————————————————————————————————————
王=-Cheer up. Ibelieve you can make it.By the way, do you have any plan about your comingholiday?
菜-last nightMy friend announced they would come to china for a visit.but i have no idea where theyshould be arranged to stay.
王=-Have yourfriends been to china before? Where doyour plan to do?
菜-I reallythink their should take a tour of shanghai.
王=-great!Shanghai is one of the largestcities in China .Shanghai is abeautiful city.There are many tall buildings in Shanghai and the air inShanghai is fresh and there are many green trees and flowers, birds are singingeverywhere.Shanghai people are very nice and friendly.
菜-It soundsgreat!Could youtell me about it in detail ?
王=-ok.The Huangpu River flows through thecity.There are many new buildings in thePudong,including thefamous Oriental Pearl TV Tower.There are many great shops along the Nanjing Road.
菜-sounds great.and we also enjoy eating Chinesefood,especiallysome refreshment.
王=-in City GodTemple,You must gothere to taste Shanghai Nanxiang Steamed Buns,and You’d better make a list of thesites you want to see in advance.
菜-sounds verytempting.we willsurely have a try.
———————————————————————————————————————
王=-Thanks foryour advice.Look, it’s lunch time. Let’s go and have lunch together.
菜-Let’s go!

王=-Hi,XXX,long time no see.How is everything going?
菜-Not so good.
王=-Whathappened?
菜-You know thefinal exam is coming and I’m worried about my results.
———————————————————————————————————————
王=-Cheer up.Ibelieve you can make it.By the way,do you have any plan about your comingholiday?
菜-last nightMy friend told me that they would come to china for a visit.but i have no idea where theyshould be arranged to stay.
王=-Have yourfriends ever been to china before?What do you plan to do?
菜-I reallythink their should take a tour of shanghai.
王=-great!Shanghai is one of the most developed cities in China .Shanghai is abeautiful city.There are many tall buildings in Shanghai,the air inShanghai is fresh and there are many green trees and flowers,birds are singingeverywhere.people of shanghai are very nice and friendly.
菜-It soundsgreat!Could youtell me more details about it
王=-ok.The Huangpu River flows through thecity.There are many new buildings in thePudong,including thefamous Oriental Pearl TV Tower.There are many great shops along the Nanjing Road.
菜-sounds great.and we also enjoy eating Chinesefood,especiallysome refreshment.
王=-in City GodTemple,You must gothere to taste Shanghai Nanxiang Steamed Buns,and You’d better make a list of thesites you want to see in advance.
菜-sounds verytempting.we willsurely have a try.
———————————————————————————————————————
王=-Thanks foryour advice.Look,it’s lunch time.Let’s go and have lunch together.
菜-all right.
我修改了一些地方,