cleft construction (のは~だ)

In this boundless universe, are we humans really the only ones?

"Hey, whose kid are you?" What had been clinging to my leg was a tiny kitten — a fluffy, gray-striped cat.

The only one I want is you.

It's usually the islanders who can see the mainland most clearly.

It was your child who tore my book to shreds.

By the way, the reason fish gills are bright red is that, like lungs, many capillaries are gathered there.

Was it you who left the door open last night?

It was pure chance that we met.

This is what I was looking for.

Isn't saying you can't do the job because you're busy just an excuse?

The one who came to visit was the principal himself.

It was years later that mother finally told me the truth.

Slaughtering prisoners of war is a cruel act.

No news is good news. Not hearing from your son just means he's doing well.

Her one and only concern is the safety of her children.

It's your responsibility to decide whether we go there or not.

Mastering French in two or three years is extremely difficult.

The major institutional constraint is the issue of copyright.

I polished them with all my might. The problem was that there was surprisingly little stock of low-grade gemstones.

The person who opened the door and came in was a complete stranger.

It is only very recently that petroleum came to be used as a raw material for chemical products.

Evaporate the solvent from that liquid. What remains is a mass of aromatic compounds and plant wax.

What Jansky observed was radio waves of 14.6 meters wavelength from the galactic core.

It was in the 3rd year of Meiji that the family name was changed to Saga.

Why was the Japan Defense Agency upgraded to the Ministry of Defense?

I'm the one who found her. She was unconscious, so I carried her to the nurse's office.

What blocked his path was a stone wall under a meter high.

It was Socrates who laid the foundations of logic.

It was because of the storm that the train stopped.

It's only natural for Mr. Suzuki to be proud of his son.