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.