Ответ:

  1. The school got all the children to take part in the Art Festival.
  2. I think it’s the best Russian translation of the poem.
  3. My brother has got a big collection of toy cars. Would you like to… The sentence is cut off, so its ending cannot be completed reliably.
  4. Will the school orchestra take part in the celebration of the City… The end of the sentence is cut off.
  5. Can we make a suggestion? Yes, of course.

Ответ: 1) the children; 2) translation; 3) collection; 4) celebration; 5) suggestion.