根据母或汉语提示填空。

1. We should be _____ (镇静的, 沉着的) before danger.

2. The l_____ snow can make the wheat warm.

3. Dennis i _____ the warning and put his hand into the lion's cage.

4. He was caught c _____ in an exam.

5. Because he didn't finish the work on time and was fined by the

    company, he was very u_____ about it.