America will never again have as a nation the spirit of adventure as it _____ before the West was settled.
You should have put the milk into the ice box, I expect it ____undrinkable by now.
Some companies have introduced flexible working time with less emphasis on pressure ____
It takes a lot of____ to put on a school play such as King Lear.
Many automobile accidents were ____ careless driving.
Once our chickens started laying eggs, we had such a ______of eggs that we were giving many away to our neighbors.
I was awfully tired when I got home from work, but a half hour nap ______ me.
We should always keep in mind that ______ decisions often lead to bitter regrets.
When the idea of winning in sports is carried to excess, ____competition can turn into disorder and violence.
The ____ of AIDS has led to an expansion in research seeking a cure.