In fact fuels we burn and plant food we eat ______ their chemical energy in the form of heat.
Even if we have an extremely healthy diet and lifestyle, the human body is programmed to _______ at a maximum of about 120 years, and usually less.
While in London, we paid a visit to the hospital founded_________the nurse Florence Nightingale.
He has been in high spirits, for pieces of exciting news came to him_________.
He arrived home very late last night, _________in the early hours this morning.
Lisa is completely_________and receives no money from her family.