Задайте вопрос к предложению She has read this book. Has

The first sentence is "She has read this book."

1. Has she read this book?

2. Has she read this or that book?

3. Which book has she read?

4. Who has read this book?

5. She has read this book, hasnt she?

The second one is "He had sent the telegram before they came."

1. Had he sent the telegram before they came?

2. Had he sent the telegram before they came or before they gone?

3. When had he sent the telegram?

4. Who had sent the telegram before they came?

5. He had sent the telegram before they came, hadnt he?