摘要：It was a Sunday afternoon.The weather was nice.Xiao Mao and I went to buy some books.Xiao Mao is my little brother and he is only seven years old.When we went out of the book store,we met some of my classmates.They were all my friends.They invited us to go boating.“It is very kind of you to invite us to go boating,”I said.thus we went to Qianlong Lake together.