1) My mother asked who had broken her favourite vase.
2) Look! Somebody has broken my favourite vase.
3) Have you ever seen a flying saucer? – No, but my brother said he had seen it.
4) He looked at the girl and understood he had seen her somewhere before.
5) Mrs. Brown lives next door, but she never says more than “Good morning” to me.
6) They have just bought the apples. Have one!