你爱打网球,但我爱看书。(while)__________________________________________________
______leaves the room last ought to turn off the lights.
. It is generally considered unwise to give a child _____he or she wants.
_____ the 2000 Olympic Games will be held in Beijing is not known yet.
What the doctors really doubt is _____my mother will recover from the serious disease soon.
_____we’ll go camping tomorrow depends on the weather.