1. He explained the new policy to the editorial s( )f. 全体人员

2. We heard someone s( )m in fright. 尖叫

3. She didn't like the work, because it lacked v( )y. 多样性

4. The child put the watch to his ear and listened to its t( )k. 滴答声

5. The doctor put some medicine in each n( )l. 鼻孔

答案:  staff; scream; variety; tick; nostril;