Definition: to be on fire, or to produce flames Level: B1
木头太湿，烧不起来。
The wood was wet and would not ___burn.
壁炉里的火熊熊燃烧。
A fire was ___burning brightly in the fireplace.
过了一会儿，我找到了火柴和木柴，很快壁炉里就燃起了温暖的火。
After a while I found matches and firewood, and soon a nice warm fire was ___burning in the fireplace.
