Use ideas from ex. 4 to write a letter to the editor(100-180 words). in your letter, discuss the problem of air pollution suggesting ways to solve it.
The rain had stopped before I went for a walk. My mother had returned home before I did my homework. We had met in the street before we went to the park. They had packed their things before then they started. I had switched on the TV set before I had dinner. He had returned home before the guests left. We had came to the cinema before the film began. I had read the book before I saw the play. They had lived here before they moved to another place. We had played a game of tennis before we went to my place.
The rain had stopped before I went for a walk. I had done my homework before my mother returned home. We had met in the street. before we went to the park. They had packed their things before they started. I had had dinner before I switched on the TV set. He had returned home before the guests left. We had come to the cinema before the film began. I had read the book before I saw the play. They had lived here before they moved to another place. We had played а game of tennis before we went to my place.
