исправить ошибки
1. Who bring books to you?
2. Who did took the book back to the library?
3. Who Nick can reach the highest bookshelf?
4. Who will buys books for you?
5. Who was the main heroes of the book?​

1 Who brings books to you?/ Who brought books to you? (тут подходят оба варианта)

2 Who took the book back to the library?

3 Who can reach the highest bookshelf?

4 Who will buy books for you?

5 Who were the main heroes of the book?