Nowadays people think that life is ______.
A) dull C) unsafe
B) interesting D) happy

A．jump down to the ground without holding to a rope
B．fasten yourself to a rope and fall from a great height
C．jump up as high as you can
D．move down a rope to the ground

A．are taking part in games that are very safe
B．are aware of the risks of some activities
C．arc trying dangerous activities for excitement
D．are looking for ways of showing their courage