【原创】 Green roofs have an ______effect, helping reduce the amount of energy______ to heat a building in winter and cool it in summer.
This book tells____ life story of John Smith, who left____school and worked for a newspaper at the age of 16
He must have done it well, because he told me he just did what he _____ to do.
If he goes on driving like that, sooner or later, he will ____ an accident.
He asked ______the work was done as it had been planned ______.
There was no ______of controlling it once the fire began to spread.