Задайте вопрос к выделенной части предложения:
1. A set of text-filled or illustrated pages produced in electronic format is (known as) an e-book.
2. A set of text-filled or illustrated pages produced in electronic format is (known as) an e-book.
3. I am a student.
4. I am a student.
5. A learner, or someone who attends an educational institution, is a student.
Discussion
1. What is (known as) an e-book? A set of text-filled or illustrated pages produced in electronic format is (known as) an e-book.
2. What a set of text-filled or illustrated pages produced in electronic format is known? A set of text-filled or illustrated pages produced in electronic format is (known as) an e-book.
3. Who is a student? I am a student.
4. What are you? I am a student.
5. What is (known as) a student? A learner, or someone who attends an educational institution, is a student.
должна быть инверсия и управление глагола (as)
так?
What a set of text-filled or illustrated pages produced in electronic format is known as?
Так: What is a set of text-filled or illustrated pages produced in electronic format known as?
What a ← конфликт морфологий ⇐ на одну функцию детерминатива два алломорфа = what - детерминатив и неопределенный артикль - тоже.