词汇。
1. Jack is ________(careful). He often makes mistakes.
2. That man ________(quick) ran away.
3. Fire can be ___________(danger) if we are not careful with it.
4. Jack fell off the bike and ___________(hurt) himself.
5. Listen! I can hear someone__________(call) for help.
6. I _________(burn) my hand when I was making breakfast.
7. Listen! How beautiful the music _________(sound)!
