Passage Three
Questions 32 to 35 are based on the passage you have just heard.

A．Because they are too small to understand the rules.
B．Because they are absent-minded.
C．Because they don’t have much time for it.
D．Because they arc not interested in it.

A．Botany is a very ancient learning.
B．People in the Stone Age knew a lot about plants.
C．People in the Stone Age knew little about plants.
D．Pre-industrial societies have little insights about plants.