I have a severe headache and can't concentrate on my work.

This noisy music worsens my headache.

I think his behavior is unjust.

I think his actions are completely inhumane.

Aldehyde is a very important compound in organic chemistry.

He was poisoned after eating something.

It seems like he has been poisoned by something.

I thought his behavior was really cruel.

I like listening to music.

He installed a sundial in the garden.