根據母或漢語提示填空。
1. We should be _____ (鎮靜的, 沉著的) 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.
