It is said that dogs will keep you _________for as long as you want when you are feeling lonely. 

Being tall gives Yao Ming a(n) _______ over other basketball players. 

Often looking at your daily behavior from a different ______ will help you change your  actions for the better. 

His _________ estimated at fifty million dollars.

.Symphony means a long piece of music that has three or four parts or ＿＿.