When he was at university, my dad did a _________ in maths.
______ his brother, Mike is active and friendly.
The examination was not very difficult, but it was_____________________ long.
As a millionaire who liked to show off her wealth, Mrs. Smith paid______________________________________________ we asked.
The boat was sailing north when a terrible storm_____________ .
Supporters of free-market globalization point out that_____________________ .
Education in many countries is compulsory________the age of 16.
_______ 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 pool should not be made so deep______small children can be safe there.
The phrase "keeps sellers on their toes" in the passage mostly means "______".