Surprisingly, he could draw such a beautiful picture with his eyes _____.

Many strange new means of transport have been developed in our century, the strangest of _____ being perhaps the hovercraft(气垫船).

The stranger stood by the window, with his eyes ______ on the hills in the distance.

We have the most population in the world, most of it _____ farmers.

There was a line of cafes and small shops,      .