________ have you learned to play the piano— ________ five years ago.

Thank you for lending me your MP5 player. Can Ireturn it to you next Monday—–________. I’ve bought a new one.

When the terrible superstorm struck lbe.

How much is _____ for a schoolbag— Experts say students should carry _____ more than 10% of their body weight．

23“If anything ________ to the patient, let me know at once, please.” the doctor said to the nurse