Birds make nests in trees_______ hide their young in the leaves and branches.
The boat was sailing north when a terrible storm_____________ .
_______ has been a topic of continual geological research.
We all agree that she is____________________ student in our class.
The pool should not be made so deep______small children can be safe there.
The examination was not very difficult, but it was_____________________ long.
Only one of our gifted students______to participate in the final competition.
Tom: "___________________ " Mike: "I won't say no!"
Education in many countries is compulsory________the age of 16.
______ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music.
Michael looked deeply hurt and surprised when_____________________ .