Ⅰ. 根据句意及首字母提示完成单词 (10分)
1. Wood can be u_______ for making paper.
2. Cars were i_______ in 1885.
3. You can’t wear s_______ in the gym class. Instead, you should wear sports shoes.
4. The machine should be o_______ with care.
5. Water turns into steam when it is h_______.
