15（）

单项选择题According to the author, the use of protective wrappings（）

A．can be wasteful and unnecessary
B．makes everything look funny
C．gives people more work to do
D．is a practice against natural life

单项选择题Where are Johnstone and Dolby from（）

A．Both are from Britain.
B．Both are from Australia.
C．Johnstone’s from Britain, Dolby Australia.
D．Johnstone’s from Australia, Dolby Britain.