Crops are often completely destroyed by ______of locusts.
She asked me______I was looking at.
There has been a great increase in retail sales,_____________________ ?
As a millionaire who liked to show off her wealth, Mrs. Smith paid______________________________________________ we asked.
In spite of her abilities, Laura has been_____________________ overlooked for promotion.
He_______________us but he was short of money at the time.
_______ has been a topic of continual geological research.
The Lake District,____________________ was made a national park in 1951, attracts a large number of tourists every year.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
We all agree that she is____________________ student in our class.
Education in many countries is compulsory________the age of 16.