We crossed the lake in a small dinghy.

He corrected the mistakes in my report.

This letter will be relayed.

She was thinking with her hand on her forehead.

This three-legged kettle is from ancient China and is very valuable.

He is looking for a certain book.

Bats use echolocation to fly around in the dark.

A new arbor was built in the park.

The calculation of definite integrals is an important part of calculus.

The Ottoman Empire was once a powerful empire that existed in the Middle East.