1. the landlady remembered that my parents at her house once. stayed staied have stayed had stayed 2. i hoped that he his position in the nearest future. will leave would leave will left would left 3. i didn't know that mars round the sun at a distance of 140 mln. miles. turned had turned turns turning 4. alex promises me that he his english. will improve would have improved would improve will have improved 5. she told her parents that she in the reading room at that moment. is working will be working has been working was working 6. marina said that she her ticket. had lost have lost lost loses 7. mary explained that her father to do all those repairs by himself. won't able wouldn't be able won't be able wouldn't able