often pointed out, knowledge isa two-edged weapon which can be used ______ for good or evil.

Big animals can be a lot of trouble. Maybe you should get asmall pet, like a goldfish.–______.

_____ achievement, last week’s ministerial meeting of the WTO here earned a little, though not failed[ ]

The new invention made ____________ possible for a blind man to read.

his novel, the author decided to adapt it into a play