20. The horse is blind _____ the left eye.
How long do you think _______ the computer company turns out a new product?
--Mike, the telephone is ringing. --I _________ answer it.
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.
Many of the creatures in the movie “Avatar” are not real, but much of __________ happens is attractive.
--It’s hard to believe that Jack ________ have fought with the policeman. --Yes. If one ________ ask for trouble, it can’t be helped.