Ⅰ. 根据句意及首字母提示完成单词（5分）
1. My d______ is to be a teacher.
2. There is no boat, so we can’t cross the r______.
3. There is a road(公路) b______ the two villages.
4. You can take the No. 5 bus at the next bus s______.
5. We need to build(建造) a b______ over the river.
