A.preparation in advance
B.theway one speaks
C.innate sense of humor
D.calmfacial expression
A.howone can be naturally humorous
B.howto make humor work well
C.wherehumor can come from
D.howpractice can make one's humor perfect
A.inconceivable
B.unbelievable
C.suspected
D.implausible
A.Theman walked sixteen miles along a dangerous roaD.
B.Theboy walked five hours in his sleep.
C.Thestudent habitually walked to the Iowa River and swam in his sleep.
D.Theman danced a minuet in his sleep.