A fire _____ during the night and a large number of houses _____ to ashes.
A fire \_\_\_\__ during the night and a large number of houses \_\_\_\__ to ashes.
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The development of industry has been _____ gradual process throughout _____ human existence, from stone tools to modern technology.
The development of industry has been \_\_\_\__ gradual process throughout \_\_\_\__ human existence, from stone tools to modern technology.
Large quantities of water _____ needed for cooling purposes.
Large quantities of water \_\_\_\__ needed for cooling purposes.
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