Forest fires can be caused by______.

Why did the Celts extinguish their fires on the night of October 31st ?

Fires broke out everywhere, and the entire city went up in ______ .

What is one of the duties of the speaker A: To build fires. B: To guide nature walks. C: To train animals.

Large fires can do more than __________ vegetation and clog the skies with smoke.

What is one of the duties of the speaker A: To build fires. B: B. To guide nature walks. C: To train animals.

中国大学MOOC: They had to _________ endless fires in the distarter. They had to stand firm and be brave.

Why was an airport forced to close down A: Because the blazes from the fires were too hot. B: Because the smoke from the fires were too thick. C: Because it was too droughty at the airport. D: Because it rained heavily there.

Hurricanes, flooding, droughts, forest fires and other disasters occur more frequently than those in the past.

No gas leaks or fires were reported at the site at the time of the . A: occurrence B: appearance C: beginning D: happen