______in the hospital for 4 years, he had decided to give up his work.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
______ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music.
The word "allocated" in the passage mostly means "______".
The Lake District,____________________ was made a national park in 1951, attracts a large number of tourists every year.
_______ has been a topic of continual geological research.
There has been a great increase in retail sales,_____________________ ?
The packages___________________ so that it would be easier to carry them.
In spite of her abilities, Laura has been_____________________ overlooked for promotion.
Education in many countries is compulsory________the age of 16.
__________ John Kennedy was elected president, he was the youngest American President ever.