．Hundreds of people gave their lives in __________ of freedom.

She knows that as a secretary she must be pleasant and helpful no matter how busy she is or what kind of ____ she may be in.

As we know, too much ________ to Xrays can cause skin burns, cancer or other damage to the body.

Her­­­________to become a teacher was held back by her poor spoken English.

He was nominated（ 提名……为侯选人）for the best actor____.