Tom failed ______ the experiment yesterday.
On AIDS Day, the minister of Health Department demanded that the problems ______ paid special attention to.
Maria has written two novels, both of ___ have been made into television series.
—I wonder if you could go with me to the supermarket. —Sorry. I _______ my experiment report all the morning and haven’t finished yet.
_______ a small number of Australians are bitten by spiders each year, most recover without any medical treatment.
This morning I saw an old friend of mine in the street by ______.