As the twentieth century came to a close,the raw materials for a great national literature were at hand,waiting ______.
The boy was curious about how the waste paper was into a model kite.
Not unti his fellows criticized him _______ to admit his mistake.
After taking part in several rounds of competition, the athlete won first prize.
He is in deep sorrow, so it is not a(n) time to mention the subject.
He bought his girlfriend diamond ring, but he was told that diamond in that ring was an imitation glass.