A．sort
B．promise
C．suggest
D．sugar

A．The old farmer was a strong enemy.
B．The price offered for the melons was very low.
C．It was hard to start a fight against friendly people.
D．It was necessary to get the truck out before anything.

A．The Greatest Killer in the West
B．Heart Disease: Treat or Prevent
C．Modern Technology and Heart Surgery
D．Heart Surgery: Advantage and Disadvantages