单项选择题

Directions: There are five reading passages in this part. Each passage is followed by five questions. For each question there are four suggested answers marked A, B, C and D. Choose the best answer and blacken the corresponding letter on ANSWER SHEET I.
Passage One

 

The humorous story may be told to great length, and may wander around as much as it pleases, and arrive nowhere in particular; but the comic (滑稽的) story and the witty (诙谐的) story must be brief and end with a point. The humorous story continues gently along, the other two burst.
The humorous story is strictly a work of art--high and delicate (精美的) art--and only an artist can tell it; But no art is necessary in telling the comic and witty stories; anybody can do it. The art of telling a humorous story--I mean by word of mouth, not print--was created in America, and has remained at home.
The humorous story is told seriously; the teller does his

 

Flying foxes tend to()

A.double their number every year
B.lose a lot of their babies
C.move from place to place constantly
D.fight and kill a lot of themselves