安全词汇：safe, dangerous, careful — 英语词汇题
题目
选出恰当的词并用其正确形式填空（每词限用一次）：safe, dangerous, careful
1. Please be _____ with the knife. It may hurt your hand.
2. Playing with fire at home is very _____. Don't do it!
3. The park is a _____ place for children to play after school.