A．They are excited about it.
B．They feel the marriage is overdue.
C．They are surprised to hear that.
D．They feel sorry for them.

A．To learn to recognize plants and animals.
B．To get to know more about yourself and your place in nature.
C．To lean how to make use of a map to find your way in the open air.
D．To learn how to survive in the wildness.