Ответ:

1. A gate of iron - an iron gate.

2. A dress made of silk - a silk dress.

3. A town situated near the border - a border city .

4. A forest in which pines trees - a pine forest.

5. Winds blowing from the west - westerly winds.

6. The leader of the party - The party leader.

7. A gallery in which pictures are shown - a picture gallery.

8. A strike in London - a London strike.

9. A conference held in Paris - a Paris conference.

10. A mistake  in spelling - A spelling mistake.  

11. Diseases in liver - a liver diseases.

12. The policy of the government - The government policy.

13. A farm where chickens are raised - a chickens farm.

14. The movement for peace - The peace movement.