A．The Eskimos seldom suffer from colds.
B．Colds are not caused by cold.
C．People suffer from colds just because they like to stay indoors.
D．A person may catch a cold by touching someone who already has one.

A．There were too many questions in the examination.
B．The examination was well beyond the course content.
C．The examination questions were somewhat too difficult.
D．The course prepared him adequately for the examination.