古詩詞大全網 - 古詩大全 - --The prison was ___________ fire last night.--Someone must have set fire___________ it. A．o..

--The prison was _ fire last night.--Someone must have set fire_ it. A．o..

B

本題是介詞的固定用法考查。on fire是指“著火”；set fire to是指“放火”。