根据下列各句句意和空白之后的汉语提示词，写出对应单词的正确形式，每空只写一词。 1. In the past, his grandfather raised two head of ________ (牛) in his family,but now he has none. 2. Students are _________ (禁止) from smoking in every school of China. 3. ________ (抓住) the thief, the retired policeman took him to the police station at once. 4. Rooms seemed ________ (不自在) warm in summer. 5. The old woman is now in a ________ (稳定) condition in hospital.