Lawrence Craven, a doctor from the USA, is the author of several published reports, one of ________ introduced the idea in 1953 ________ aspirin could reduce the risk of heart attacks.
You might wonder how it________to live without eating for so many months.
Mr Jones said he was looking________the possibility of buying a house.
You must read the________with great care to see if the drug contains PPA before it is taken.
He is always full of________as though he never knew tiredness.
The police have________power to arrest bad people by________law.