帮忙检查有没有语法错误

帮忙检查有没有语法错误
The Expo in my view
The Shanghai Expo has opened on the 1st of May.I haven’t go to see it before because I didn't have enough time.I plan to go there this summer holiday.
My uncle and dad had been to Shanghai to see the expo.The most unforgettable things to them is the people.There were a large crowd of people visit the expo everyday,so they had to queue up for a long time.For example,if you want to get into the China Pavilion,you must make an appointment,and then wait for 4—8 hours.What a long time!That’s a big problem to work out.
Expect for visit the expo in person,there is another way to join the Expo.Expo Shanghai Online will be a novelty and shortcut way if you don’t want to go to Shanghai.I had tried this way before.it’s really interesting.you needn’t to line up,but if your computer is a little bit slow,you had better not do this,it can make your computer system halted.
many people want to go to Shanghai because they want to widen their vision and have a good time,so we must keep ourselves safe.If you aren’t healthy,you shouldn’t go there because of too many people and the hot weather.
That's what I think of the Expo,I hope everyone can enjoy the international pageant!
谢.