Last Saturday our class went to the Great Wall.We went there by bus.The Great Wall was wonderful!I took many photos with my classmates.At noon,we had lunch in a small restaurant near there.Then,we went on having fun.At 5:30p.m.,we went back by bus.All of us were happy.

不知道这样行不行？你们学没学一般过去时呢？如果学完了应该可以，应付作业是没问题的。