Firemen reached the house on fire in time. The fire was put out soon.翻译 后句可不可以不用was?

问题描述:

Firemen reached the house on fire in time. The fire was put out soon.翻译 后句可不可以不用was?

【翻译】:消防队员及时赶到了那幢着火的房子.大火很快就被扑灭了.
不能不用was,was在这里表示一种被动语态——【火】是被扑灭的(put out)