根据句意，在答题卡标有题号的横线上，写出括号内所给单词的适当形式。
1. Sometimes it requires courage to tell the __________(true).
2. This machine is ____________(special) designed for blind people.
3. Follow me, guys! Close your eyes, open your arms and ___________(breath) deeply.
4. What a terrible painting! This is probably the ________(ugly) painting I’ve ever seen.