Now, that question sounds medical, so call this English treatment. You get nowhere without a copious and error-free vocabulary collection, so learn up wherever you can. Fill the blanks choosing form the two choices given. Also check out my post on “How to improve vocabulary“.
1.Aural or Oral
“Human beings have neither the _____ nor the psychological capacity to withstand the awesome power of God’s true voice. Were you to hear it, your mind would cave in and your heart would explode within your chest. We went through five Adams before we figured that one out.” (Alan Rickman as Metatron in Dogma, 1999)

2.Cereal or Serial
“There’s no such thing as jet-powered rocket pants outside the fictional _____ Robbie Rocket Pants.” (Robert Llewellyn as Kryten in Red Dwarf)

3.Confidant or Confident
“Anyone can be _____ with a full head of hair. But a _____ bald man–there’s your diamond in the rough.” (Larry David)

4.Fair or Fare
“Hey, Curly, do you think I ought to charge Mrs. Mallory’s baby half _____?” (Andy Devine as stagecoach driver Buck in Stagecoach)

5.Liable or Libel
“If you shoot me, you’re _____ to lose a lot of those humanitarian awards.” (Chevy Chase as Fletch in Fletch)

6.Palate, Palette, or Pallet
“Yes, gentlemen, I have here just about the handiest, dandiest little bookful of gastronomical surprises that ever tempted the jaded _____ of a fastidious f-f-food fancier.” (Daffy Duck)

7.Plain or Plane
“Oh, it’s a big pretty white _____ with red stripes, curtains in the windows and wheels, and it looks like a big Tylenol.” (Stephen Stucker as Johnny in Airplane)

8.Stanch or Staunch
“There’s an evil on these seas that even the most _____ and bloodthirsty pirates have come to fear.” (Naomie Harris as Tia Dalma in Pirates of the Caribbean: At World’s End)

9.Suit or Suite
“I’d walk through hell in a gasoline _____ to play baseball.” (Pete Rose)
10.Venal or Venial
“Voilà! This valorous visitation of a by-gone vexation has vowed to vanquish these _____ and virulent vermin van-guarding vice and vouchsafing the violently vicious and voracious violation of volition.” (Hugo Weaving as V in V for Vendetta)
Source: About.com (I think)
Now, go ahead and write the answers in the comment box.