ai giúp với ạaaaa, tớ cảm ơnnnn

1. Neil Armstrong, A. who 2. Marie Curie, A. which 3. The men and the elephants A. who B. whom 4. Has he found the key A. who 5. The city A. who 6. She has a friend A. who 7. What is the picture A. who 8. My children, A. who 9. The chairs A. who 10. The men A. who 11. The boys A. whom ...