根据句意及首字母提示，补全单词。
1. We are surprised to see your dog often c_____ the mice in the field.
2. My parents got up very early so that they could c the first train to Beijing.
3. There is something strange in the s__ __. Maybe it is a UFO.
4. My next-door n_ __ lives in the house next to mine.
5. Our teacher was very angry when we made a lot of n____ _ in the classroom.
