Mother: Post these letters for me please, Sue.
Sue: O.K.Mum.
Sue: Good morning, postman.
Postman: Good morning, Sue.
How are you today?
Sue: Fine, thanks.
Sue: Are there any letters in the letter-box this morning?
Postman: No, there aren't any letters here.
Sue: Just a minute.
Sue: There are some letters in the letter-box now.
Postman: Thank you, Sue.
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