Choose the correct answer.

What does a dentist take care of?

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_______ and young adults, both male and female, benefit from physical activity.

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This type of housing is large and beautiful. Building it is expensive.

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This is a type of boat that people use for racing or leisure travel that has sails and possibly an engine.

Find the mistake.

They phoned theirs friends last night, but no one answered.

They know _______ address, but we don’t know _______.

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Our teacher broke the final project _______ three separate parts.