在市场上购买衣服时,你看到的表示大中小号的字母依次是:
Justin Bieber is ________ Canadian singer and he has lots of fans.
— Maths is as interesting as English, I think. —. English is more interesting than maths.
— Will you please take a message for the headteacher?
— Thank you for your help.
—are the apples? — Four yuan a kilo.