Воткните правильную форму глагола to be ( am , is are

Воткните правильную форму глагола to be ( am , is are ) 1 , His elder brother ....... Kind and intelligent 2. Do you know where your friends........? 3.know ledge .... Important? 4. Where ..... Your sisters and brothers? 5.Jack .... The most interesting person l have ever met 6. Whose music.....the most popular? 7. What date ... is today? 8. I ... interested in economics but my friend isn39;t