I'm sorry, I'm late.

He put the book away on the shelf.

The sky was filled with cirrus intortus clouds, creating a beautiful scenery.

The tangled clouds covered the sky, and it began to rain.

The cirrus intortus cloud was floating in the sky, creating a beautiful scenery.

The theory of quantum entanglement is one of the most complex parts of physics.

The phenomenon of quantum entanglement is a very interesting topic in physics.

Quantum entanglement is one of the most mysterious phenomena in physics.

She was struggling to comb her tangled hair.

Untangling her tangled hair was difficult.