Having just finished high school, I wasn't sure what I wanted to study in higher

30．The author’s work mainly involves ___________.
A．collecting information about two cheetahs
B．observing two cheetahs in the wild secretly
C．walking around Rietspruit to serve scientists
D．collecting data on some different big predators
31．What is the best title for the text?
A．My experience on the predator research internship
B．My experience of rescuing wildlife in Africa
C．My experience of receiving higher education
D．My experience of protecting cheetahs

答案
28-31:BDAA