18. Refer to the advice on pages 23031, and revise the

following informal sentences to make them moderately

formal.

a. The biggest problem faced by multimedia designers

is that users freak if they dont see a buttonor,

heaven forbid, if they have to make up their own

buttons!

b. If the University of Arizona cant fgure out where

to dump its low-level radioactive waste, Uncle Sam

could pull the plug on millions of dollars of research

grants.

19. Refer to the advice on pages 23133, and rewrite the

following sentences to remove inappropriate use of the

passive voice.

a. Mistakes were made.

b. Come to the reception desk when you arrive. A

packet with your name on it can be picked up there.