50 . replace the following complex sentences or groups of sentences by simple sentences with the complex object. model: scientists found that materials displayed special properties at the nanoscale. scientists found materials to display special properties at the nanoscale. 1. people used nanoscale-based processes as far back as the middle ages. we know about it. 2. many researchers consider that the process of obtaining nanocrystals is very slow and complicated. 3. it would be really exciting to watch how atoms assemble themselves into nanostructures. 4. students cannot experiment with nanotubes. the head of the laboratory has forbidden it. 5. no one had expected that the developments of nanotechnology would be used in such everyday products as sunscreens. 6. the nanostructures are self-replicating. i would like to see it.

ответ в приложении на картинке! Ну и заданице))))

21. A salad doesn’t come with your dinner, but you can order one a la carte (по выбору из меню).
22. I’m going to be sent as an attache (атташе) to three different countries this year.
23. Tom is very naïve (наивный; простодушный) He trusts everyone.
24. Pam’s parents are so bourgeois (буржуазный). All they ever do is talk about their money.
25. My company cut half its staff this year but the upper echelon (звено управления) got huge bonuses.
26. Only the elite (элита) attended the opening night in the Opera.
27. I had a sense of déjà vu when I visited Egypt. Maybe I was there in a past life!
28. I sure hope they’re going to serve hors d’oeuvre (закуска) since we aren’t going to have dinner for an hour!
29. I’m going to call the concierge (менеджер по работе с постояльцами, гостями отеля) and ask him to get me two tickets for the opera this evening.
30. My favourite pastry is an eclair (эклер). I like to eat the ends off first, then eat my way toward the middle where I’ll find the most custard.

Having done athletics and played netball the transition to rugby was not difficult
Though Jo had resolved never to marry, still she felt an awful loneliness as she wondered what direction her life should take
When police examined his car, left on the motorway, they found a note written on the back of a bus timetable
His main recreation remains ballroom dancing - tango, cha cha and waltz being his specialities
Even from the opening moments, as the band tunes up its instruments, we know this movie is going to be about the music. 
In spring play Joyner showed good bat control and played solid defense.