Alexander Аkimovadded a comment 5 years ago
1. Open your book to page 3. (American English)
2. Open your book at page 3. (British English)
3. Open your book on page 3. (Incorrect)
открывает книгу
opens a/the book
1. Open your book to page 3. (American English)
2. Open your book at page 3. (British English)
3. Open your book on page 3. (Incorrect)
либо openS, либо "открываТЬ"
Спасибо, не заметил