Remember to turn off the lights before leaving the classroom, children.— .

— Liu Fang, I didn’t know you can play the Pipa and Guzheng so well.— Well, actually I ________ it since I was six years old.[ ]

How are your recent trip to Sichuan?—I’veneverhad ______ onebefore.

17— I’m sorryI ____ hurt you— Forget it

You should not ______ your mistakes if you want to make greater progress.