_____ basic first-aid techniques will help you respond quickly to emergencies.
He preferred __________ rather than __________.
The visiting professor giving lectures to students __________ invited to meetings at times.
They quarreled lastnight, but soon __________,talkingand laughing happily.
Putting in a new window will __________ cutting awaypart of the roof.
All classes of his school are __________ with modern teaching __________.