阅读下面的短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。
The eyes are one of the most expressive instruments of body language. Keith, seventeen, from Montclair New Jersey, learned the hard way about one____the eyes can make. “I had a____who graded（打分）heavily on classroom discussion，”Keith says. “He seemed to have a strong ability to know just when I didn't have the____. I couldn't figure out how he could be so____. Then it dawned on(明白过来)me. ____I didn't know the answer, I would avoid looking at him. When I__46__know what to say, I always____straight back at him. From that moment on, I____myself to look at him in the eye，____I knew the work or not. That trick has saved me a lot of trouble.”
Many people including some policemen, believe eye contact(接触)is a good____of honesty. If someone can't look at you directly in the eye, then he or she is not playing____， they insist. After many experiments，____， a number of experts have found out that good liars(骗子)can make false eye contact.
Eye contact, though not a____sign of honesty, is a clear way to show interest in another person. When a person looks at you and____to do so, you know his____is placed on you. When he turns his head away, his mind is probably____. ____there are exceptions. A____person may have trouble making and keeping eye contact, no matter how interested he is in the other person. And certain____, such as the British and Germans, are much____oriented(适应)to eyeball­to­eyeball contact than the French and Arabs.

A．letter B．notice C．message D．news

A．student B．headmaster C．friend D．teacher

A．answer B．problem C．excuse D．question

A．slow B．sharp C．dull D．clever

A．Whatever B．Whenever C．However D．Wherever

A．did B．didn't C．don't D．do

A．watched B．glanced C．saw D．stared

A．helped B．forced C．taught D．persuaded

A．when B．whether C．if D．as

A．lesson B．way C．chance D．test

A．honestly B．quickly C．correctly D．really

A．therefore B．however C．actually D．especially

A．real B．exact C．wonderful D．sure

A．stops B．continues C．changes D．hopes

A．attention B．spirit C．strength D．energy

A．anywhere B．nowhere C．elsewhere D．everywhere

A．And B．Or C．But D．So

A．brave B．shy C．stupid D．proud

A．nationalities B．cities C．countries D．languages

A．more B．less C．too D．Enough