单项选择题
A．to keep the evil spirits away B．to have fun C．to celebrate the coming of the new year D．to keep to a custom
A．a Scottish song which says good-bye to old friends B．a Scottish song that welcomes the coming of the new year C．a song sung by the Scottish people only D．a Scottish song remembering obi friends and good times
A．to take an experienced pilot in a plane B．to be taken up into the air in a plane by an officer C．to fly a commercial plane D．to talk about his ideas