求写一段英文对话,内容可以为相约去旅游,单词要包括副词 ,比较级,定冠词,时间 ,方位介词,一共4个人对话,大约4分钟时

手打,ABCD四人
A：hi B ,long time no see,where have you been?
B:O,I went to Shanghai for the EXPO with C.It is really wonderful.
C:Yes ,it‘s amazing ,there so many new things I had ever seen.
A:Lucky you.i also want to have treaval to shanghai but i have no time.Can you tell me something about the EXPO?
B :You know there are so many country gather in shanghai ,so you can encounter a lot of foreigners.
A :Wow ,wonderful,have you made a foreigner friend?
B:Of cause ,they are so friendly and very curious about our culture.I can introduce him to you if you like .
C:You'd better not,do you think he(A) can comunicate with the forigner smoothly?