My postcard is still on the desk. Why () you () it

单项选择题The third paragraph is developed().

A．by space
B．by examples
C．by time
D．by comparison

单项选择题Armstrong was called Pops because he ().

A．looked like a musician
B．was a musician of much influence
C．showed an interest in music
D．traveled to play modem music

单项选择题What does the underlined word readings refer to().

A．literary works
B．books
C．announcements
D．figures

单项选择题The author writes this passage most probably for those who plan to () in Yellowstone National Park.

A．do research work
B．take a business trip
C．have sports games
D．spend their holidays or take a tour

单项选择题Why did Jeb pull his jacket open when he saw the cougar().

A．To get ready to fight.
B．To frighten it away.
C．To protect the boy.
D．To cool down.