我编了两段对话,希望你感受一下：-May I help you?-No,thanks.(-Yes,please)需要帮助吗?不,谢谢.（是,谢谢）-May I have a look at the toy,mom?-No,you can't.(-Yes/Sure.You can.)妈妈,我能看一下玩具吗?不,不能看...