You need to use your head to solve this problem.

I want to go to Mongolia.

He did not begrudge his time, but taught us his knowledge.

He cherishes his old car.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.

He says that what you like to do, you do well, so he practices drawing every day.

He always has a mischievous smile on his face.