Are the walls rough or smooth?
The paper is not smooth enough.
This desk has a smooth surface.
He was caught smuggling drugs into the country.
He took a snack at 12 o'clock.
Give the clothes a good soak.
Prices have soared.
The Smiths are sociable.
There is an electric socket in the wall.
Some soils are not suitable for farming.
Better cultivation of soil will bring about better crops.
They have a solar water heater.
Neptune is one of the farthest planets of the solar system.
There are nine planets in the solar system.
He was her sole comfort.
He was very solemn and refrained from talking.
We solicit you for your custom.
Jelly solidifies as it gets cold.
There is not a solitary exception.
She sang a solo.