What will happen if you put a buzzard in a pen (围栏) which is six to eight feet square and entirely open at the top? The bird in spite of its ability to fly, will be an absolute __1__. The reason is that a buzzard always begins a(an) __2__, from the ground with a run of ten to twelve feet. Without enough __3__ to run, as is its habit, it will not even __4__ to fly, but remain a prisoner for life in such a small jail with no top.
The ordinary bat that flies around at night, who is even a really __5__ creature in the air, cannot take off from a __6__ place. If it is placed on the floor or flat ground, all it can do is to move about __7__ and, no doubt, painfully, until it reaches some slightly __8__ place from which it can throw itself into the air. Then, at once, it takes off like a __9__.
