As is so often pointed out,knowledge is a two-edged sword which can be used____for good or evil
Only when he failed ______ the stress he was under.
He told me how he had given me shelter and protection without which I ______of hunger.
After he had recovered from his injury, he caught a squirrel (松鼠) and raised it as a pet. Soon he ______ home snakes and other creatures from the woods near his school.
Realizing ______ I had been able to accomplish, my fears of failure grew rapidly.
In Australia’s New South Wales, a group of animals are at risk of losing their home with a new logging program soon ______.