The pipes have oil or water, which is heated and sent to the storage tank until to produce electricity.
The book you bought is more expensive than _______.
---- Will you be on holiday soon? ---- Well, I’m too busy to take a holiday now. I’ll beable to take ______ later.
No bread eaten by man is so sweet as ______ earned by his own labour.
---- Did you go on many of the hunting trips?---- No, ________.
Does ________ matter if we don’t come for the meeting tomorrow?