The biggest whale is _____ blue whale, which grows to be about 29 meters long—the height of ____ 9-story building.
It is not enough only_____the rules of grammar if you want to learn English well.
He_____the person referred to be put in prison.
_____you I owe a thousand apologies____ having doubted your ability.
______at in this way, the present situation about birds flue doesn’t seem so disappointing.
______, I think, and all the problems could be settled.