Make the sesond sentences

----- Nội dung dịch tự động từ ảnh -----
9. This is the first time Nam has used computer
→ Nam has...........................................
10. It is the first time Tom has sung
→ Tom has...........................................
11. Ba has never listened to classical music before
→ This is...........................................
12. Nam has never seen her before
→ It is...........................................
13. I have never talked to him before
→ It is...........................................
14. It is the first time Ba has killed chickens
→ Ba has...........................................
15. It is the first time she has eaten apples
→ She has...........................................