Computers are famous for their ______.
versatility
versatile
versatation
versatilely
You should drive _______ or you may have an accident.
carefully
carelessly
careless
careful
Are these shoes ______?
authenticitation
authentic
authentically
authenticity
He always thinks he is _________, but no one likes him.
excited
excitement
exciting
excite
These tablets should help to ease the ____.
painfully
pain
painful
pains
The Davis Cup is an important ______ tennis championship.
nation
national
international
internation
"He's not coming home," she said _____. I could see tears on her face.
unhappy
happy
unhappily
happiness
I need someone _____ to take care of the children while I'm at work.
undependable
dependable
dependent
dependece
