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Dear Mike,
Thank you for inviting me to visit you. Unfortunately I have a family affair on Saturday so I cannot really visit you. I hope we will meet later in the month as I have a lot of good news for you.
Yours sincerely,
Julia
Dear Mike,
Thank you for inviting me to visit you. I confirm that I will be at your place on Saturday, Jan 26th. I hope that the train will arrive on time. See you soon!
Yours sincerely,
Julia
У Джека есть хорошие головоломки
It's ... o'clock.
The weather is fine.