根据句意及中文提示,填写正确的单词.

问题描述:

根据句意及中文提示,填写正确的单词.
1.She can do it ____(独自).
2.Zhang Hua helped Mrs Sun ___(扑灭)out the fire.
3.The man ___(受伤) his legs and arms in the accident.
4.I heard someone ___(唱歌)at that time.
5.He ___(冲进) into room to save the little boy

1.herself 2.put 3.hurt 4.singing 5.rushed