Mrs Green loves flowers very much and she has a small but beautiful garden.In summer the flowers are very nice.One day,the doorbell rings and she opens the door.She sees a little boy outside.He is about seven years old and has a lot of flowers in his hands."I'm selling flowers,"he says,"do you want any?They're very cheap.I pick them this morning.""Morning boy,"Mrs Green answers."I have a lot of flowers in my garden.So I needn't pay for them.""Oh,no,you don't have any flowers in your garden now,"says the boy,"they are all here in my hands."
书上的答案有时候也是有错误的,整篇文章都是一般现在时,故用opens.