Clothing made of man-made materials has advantage over _________ made of natural ones like cotton, wool or silk.

--Are you going to visit the exhibition this afternoon?—I’m not sur.Perhaps I’ll find __ other time.

The potential of economic development of one region varies from ______ of another.

There are a No, 4 tolley- bus and a No 8 motor-bus here.___ will take you to the zoo.

______side of the street is lied with different shops, ______of which sell electronic products.