It is in many cases an advantage if an animal can remain perfectly still, and in a general way it may be said that an animal in danger in most likely to be detected __________.
A. movement
B. when it moves
C. then it moves
D. when does it move
Answer:B
It is in many cases an advantage if an animal can remain perfectly still, and in a general way it may be said that an animal in danger in most likely to be detected __________.
A. movement B. when it moves C. then it moves D. when does it move