Questions below refer to the following letter.
Dear Oleg,
I am writing to let you know that on July 17 we are going be having a party to celebrate the launch of our new GX99 line of mobile phones. This (1)............... held in the Ambassador Room in the Dolton Grand hotel.
If you are free on this evening I would be very happy if you could join us. Your help in promoting the GX50 series was invaluable and we expect that with your input, the new line will be even (2)............... successful than last year.
I really hope you will be able to make the party as I expect that it will be an impressive one. In (3)............... case, I will give you a call next week to set up a meeting to finalize the designs for the January campaign.
Best regards and talk to you soon.