Put the suitable structure either it is or there is therea are in each space and act the chilred to dialogues.
2.is it / It is
3 Is it / it is
4. Was it/ there were (aici trebuit neaparat folosit trecutul, pt ca e vorba despre noaptea trecuta)
5. It is / There will be ice on the lake tomorrow (neaparat folosim viitorul in a doua propozitie, pt ca e vorba despre tomorrow)
6. It was (la fel ca la 4, trebuit trecutul, ca avem yesterday)