What really brings us together is a(n) ______ purpose to protect wildlife from being destroyed.[ ]

I’m terribly sorry to keep you waiting for so long — _______

She got stuck in a terrible traffic jam on the highway to Shanghai，or shedinner with her family now．

The newly-married couple quarreled so much that they reached the point _______ they had to separate from each other

is known to us all is that America is a developed country _________the First World.