—How far can you run without stopping?—________. I've never tried.
If the boy had _____ the dog alone it wouldn't have bitten him.
We all knew from the very _____ that the plan would fail.
He was afraid that the branch might bend over and break, and he would be sent _____ to the ground.
The number of tickets _____ will be determined by the size of the stadium.
They always kept on good _____ with their next-door neighbors for the children's sake.