My grandfather has been suffering from high blood pressure for many years.

Changes in atmospheric pressure can cause headaches.

The fee for the food at this restaurant is high.

Is the service fee included in this restaurant?

He missed school because he had a fever.

He is heating up the coffee.

His actions are not reasonable at all.

I can't understand the reason for his actions.

Ri is my best friend.

What kind of seasoning are you using in this dish?