Поставьте всевозможные вопросы к следующим предложениям: 1. We are interested in selling our mining equipment. 2. Our office is going to sell our new model of cars. 3. The secretary has made an appoint¬ment with Mr. Brown for 12 o’clock. 4. We were having talks when the secretary brought us the cable. 1. She was at the Tretyakov Gallery last week. 2. They have reduced their prices. 3. I’m going to contact my people tomorrow. 4. The firm has accepted our offer of boilers.