Enough light to see by came from the tunnel behind them.

Already there were sounds coming from the tunnel behind them.

There were a hundred places where no one would see him from the tunnel.

Then they heard voices coming from the tunnel on the left.

It came from the tunnel through which he had entered.

He was still hundreds of meters from the main tunnel.

There no answer to be had from the echoing tunnel of black before him.

The bank had a guarantee in the income from the tunnel.

I'll say that I've just come from the tunnel on a matter of vital importance.

There was a warm wind from the tunnel and a train came in.