He leaned against the wall because he was tired.

He leaned against the wall to rest his fatigue.

My luggage is very heavy.

After watching a scary movie, she walked around the room feeling unsettled.

What is the melting point of this substance in Celsius temperature?

The freight train passed through the station.

She is good at playing the guitar, isn't she?

This furnace is very efficient.

Mom, will you make tea for me?

He proposed a new theory about the problem.