She opened the jewelry box and found a new necklace.

There is a new email in my inbox.

What will you use this empty box for?

I go to school with a lunchbox every day.

I go to school with my lunchbox every day.

He opened the wooden box and checked its contents.

The Paleogene period was a very important time in the history of the Earth.

I am planning to go to Inner Mongolia, an autonomous region of China, next week.

I have been to Outer Mongolia.

I have been to Chicago.