This factory______ （雇用）thousands of people.
I feel ______（安全的）about my new job.
Lushan is one of the National Nature R________.
My tooth hurts when I ______（咬）down on it.
He gave away a part of his. ______（收入）to his needy friends.
It wasa great ______ (宽慰)to find the children safe.
Her ______（笑声）could be heard out of the room.
Wait till you are more ______（确定的）．It's better to be sure than sorry.
We're going to hold a conference on the ______（保护）of the environment.
What are the common features of ______（昆虫）?