All people, __ they are old or young, black or white, all had the same dream to have a peaceful world.A whether B however C no matter D even though
All but Tom ___that film before.
“____either you or he to go there?” “_____is.”
____of the land in that district ____covered with trees and grass.
Burning all the lights in the classroom will be a great______ on electric power.
If you build a house with good_______ , it will last long.