Rewrite the following sentences using"it+be+adjective+(of/for+noun/pronoun)

rewrite the following sentences using"it+be+adjective+(of/for+noun/pronoun)
1 the students were mreaxonable to complain about the exam results 
2 the shelves are simple to put up
3 Hung was confident to present his ideas in front of the committee
4 we were surprised to get the scholarships
5 she was impolite to criticize him in front of his friends