I soon found that the work I was doing had al-ready been done by someone else. __________,I was wasting my time.
.The committee ______ over the problem among themselves for two hours.
.The public ______ generous in their contributions to the earthquake victims.
.Cattle ______ on the hillside.
.Her politics ______ neither conservative nor liberal.
.Measles ______ a kind of infectious illness.