_______(不幸地),theyhadnomoneyfortheirmother'smedicaltreatment.
Before you leave the classroom ，please __the lights.
-HowdoyoulikethispieceofmusicbyTanDun?
-Well,ofallthemusicthathehaswritten,Ithinkthisishis_______one.
Ladiesorgentlemen,whetheryoungorold,_______somemoneyofyourstothepoorpeopleinthemountainareawhoaresuffering.
-Look! Someone_______ the floor. It's clean.
-Well, it wasn't me. I went shopping just now.
-What would you like to drink, tea or juice?
-_______ is OK. They are both my favourite.
