请根据句意或括号中的中文提示、英文释义，写出句中所缺单词， 使句子通顺。 1.
题型：填空题
问题：
请根据句意或括号中的中文提示、英文释义，写出句中所缺单词， 使句子通顺。
1. ______ (安全) is the most important thing while we are crossing the street.
2. Yuan Longping is called "Father" of Hybrid rice, and his achievements go ______ (超出) China.
3. I've lost my watch, but it must be ______(in a place, but you do not know exactly where) in the house.
4. We were reading the passage aloud when the English teacher ______(go or come into) our classroom.
5. France is a European country, while China is an _______country.