Ⅰ. 根据句意及首字母提示完成单词(10分)
1. The problem is s______ to solve.
2. We’d go to a big o______ pop concert.
3. The girl is wearing that s______ earring. We all think she’s ugly.
4. He m______ to save the old man and was praised as a hero.
5. Can you go a______ by train? How about by ship?
