Body language is fascinating for anyone ________.
A.study B.to study C.to be studied D.being studied
So every culture has ________ a formal way to greet strangers, to show them we are not aggressive.
A.made B.got C.developed D.taken
Like other animals, we are ________ until we know it is safe to relax.
A.on purpose B.on fire C.on guard D.on duty
When ________ to someone，I usually say，“Pleased to meet you.”
A.introduce B.introduced C.introducing D.am introduced
—Tommy is planning to buy a car.
— I know. By next month, he ____ enough for a used one.
A.saves B.saved C.will save D.will have saved
He wins the Nobel Prize for his outstanding _________to physics.
A.contribution B.conclusion C.addition D.explanation
