1, That's the bag which he was carrying with care
2, The old man whom you are talking to me about has died
3, It is the man who wrote this novel
4, My sister whom you met yesterday wants to speak to you
5, The secretary who knows Fred wrote me a letter
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Mệnh đề quan hệ
- ….. N (person) + WHO + V + O
-….N (thing) + WHICH + V + O