When a fire _____ at the National Exhibition in London, at least ten priceless paintings completely destroyed.

单选题

When a fire _____ at the National Exhibition in London, at least ten priceless paintings completely destroyed.

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单选题

_____ out alone when it is late at night.(　　)

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单选题

When two fire teams are combating a fire simultaneously（同步）, they should _____.A. Never use different fire hose pressures B. Not use different sizes of fire hosesC. Not attack the fire from opposite（相反的） sides D. not wear protective clothing

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单选题

WHEN AN APU FIRE OCCURS ON GROUND:

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单选题

The street really looks magnificent at night when it is _____ by various lights.

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