The number of tickets _____ will be determined by the size of the stadium.
Two big guns are fired, and it is the __________ for the celebrations to begin.
The red light is a __________ of stopping the cars.
They have read the paper many times, but it doesn't make any __________.
He's got himself into a dangerous situation __________ he is likely to lose control over the plane.
It's helpful to put children in a situation __________ they can see themselves differently.