Questions 17-20

Which of the following is considered to be childish by the adult world？（）

单项选择题What role do most of us play when we engage ourselves with music？（）

A．That of a creator.
B．That of a re-creator.
C．That of a receiver.
D．That of a performer.

单项选择题Which dictionary are you most likely to use in your university days？（）

A．The New Oxford Picture Dictionary.
B．The American Heritage Dictionary.
C．The Dictionary of Legal Terms.
D．The Drinking Water Dictionary.