假如你叫吴兰，是衡阳某中学的学生，计划毕业考试后去北京旅游，给你的笔友Jerry写一封信，告诉他你

I went to the zoo with my friends last Sunday.It was hot and sunny
that day.It took us about two hours to get there by bus.There were
thousands of people in the zoo.We saw lots of animals,such
as,pandas,kangaroos,polar bears,gifaffes,elephants,tigers,wolves,snakes
and so on.We also saw the elephant show.The elephants were so clever
that they could do lots of things like us.At noon we had a picnic in the
zoo.And then we thew the rubbish into the dustbin.We didn't go home
until 5:00 in the afternoon.Although we were tired,we felt happy.