Finding information in today’s world is easy．The      is how you can tell if the information you get is useful or not．

Reaching this agreement so quickly was a great____ for the meeting.

—Can you hit that bird with your gun, Tom?
—No！It is out of the ________of my gun.

H1N1 control and prevention is a   to China as well as the whole world．

Teachers have to constantly update their knowledge in order to maintain their professional ________．

The factory now employs________.

School children must be taught how to deal with dangerous_________ .

_______, when I went to town to see my sick teacher, he said to me, “I’ll come back to school again _______.”

Those who suffer from headache will find they get _______from this medicine.

If you don't know that _________ is the mother of success, your are sure to be ________ in life.