It’s quite normal to ten percent of the cost of a building for a period of six months or so, in case faults are found in it.
Janet was angry at _____.
During the next ten years, she had to work hard _____ for the necklace.
-Would you like to sing a song for us? -_____.
It is _____ thinking about it now.
You'd better not have the lights _____ all day long.