That's why you were always healthy.

That's why I recommend him for the post.

That is why I could not come here.

This is why Yoshio has caught a cold.

That's why I cannot agree with you.

That is why he wasn't present at the meeting.

That is why Yoshio has caught a cold.

That is why she didn't join them.

Why did Jane go to the station?

Why don't you make it yourself?