с английским , умоляю с объяснением

1. I am glad (to be introduced) to you. 2. The box was (to  be handled) with care. You should (ask) someone (to help) you. This might not (have happened). 3. Her mood seems (to have changed) for the worse. We had better not (speak) to her now. 4. I am sorry (to have disappointed) you but I did not mean anything of the kind. 5. He is happy (to have been awarded) the first Landscape Prize for his picture. 6. He was anxious (to take) the first place in the figure-skating competition. 7. The poem can easily (be memorized). 8. This poem is easy (to memorize). 9. I did not expect (to be asked) this question. 10. There were so many things (to do), so many experiments (to try). 11. The teacher expected him (to give) a better answer at the examination. 12. They are supposed (to have benn experimenting) in this field for about a year and are believed (to have achieved) good results. 13. He must (have read) something funny; he is smiling all the time

When I (got) to the top, I (had) a bird's-eye view of central London. I (was) lucky to have nice weather. It (was) great! I... (spent) 30 minutes on the Eye. I, (admired) the city its historical building and the famous Thames. I.. (took) a lot of photos. I also... (bought) some funny souvenirs in the shop below the London Eye, a model of red London bus and a black mug with the picture of the giant wheel. Next to the London Eye are the Jubilee Gardens where we (saw) a puppet show and some "Living statues”. There (were) two kings and a nice queen, a brave cowboy and a sad poet among the "living statues” I really (enjoyed) the London Eye. I hope to come here again one day.