In the given sentences, we need to identify the interrogative pronouns. Interrogative pronouns are pronouns used to ask questions. Here are the interrogative pronouns in each sentence:
1. What did the first computer look like?
- Interrogative pronoun: What
2. Do you know which of these software programs you use most often?
- Interrogative pronoun: which
3. He asked, "Who is the computer expert here?"
- Interrogative pronoun: Who
4. To whom did you speak about your computer?
- Interrogative pronoun: whom
5. Who knows the best kind of computer for word processing?
- Interrogative pronoun: Who
6. Who can help me purchase a computer?
- Interrogative pronoun: Who
7. One computer is making a strange sound. Whose is it?
- Interrogative pronoun: Whose
8. What happened? Which one is making the noise?
- Interrogative pronouns: What, Which
9. Of these keys, which one will make it stop?
- Interrogative pronoun: which
10. What did I do wrong?
- Interrogative pronoun: What
By identifying and understanding the interrogative pronouns in each sentence, we can see how they are used to form questions and seek specific information.