I’ll never forget the days___ I spent in the country with the farmers, ____, of course, has a great effect on my life.
During World War II Malta managed to _____ most of Italian and German bombers by throwing up an effective anti-aircraft screen.
The room was so quiet that she could hear the _____ of her heart.
The new safety regulations were agreed on after _____ with the work-force.
His test results are not very _____. He does well one week and badly the next.
Scientists think they have _____ in their attempt to find the causes of some major dieases.