Написать краткое на тему примерно 40-50 слов your friend has invited you to his birthday party but you can not come

Hi thank you for your letter where you told me about your future birthday party. i would really like to come but i can't. this day i have my english lesson and i can't miss it because i wasn't there for 5 lessons because of my illness. bye,

1. we did not have to see them off, because they took a taxi. 2. who should have met you? 3. we must have not noticed it. we needed to be more attentive. 4. it can not be that she was at a concert last week. 5. i think you will not have to wait long. he will probably be free soon. 6. in vain you quit playing sports. you could win a gold medal at the sochi olympics. 7. we do not need to hurry. we have plenty of time. 8. perhaps her appearance was unexpected. everyone was in shock. 9. why is it not available? had she forgotten about our meeting? 10. you should pay more attention to sports.

Dear,(здесь должно быть имя) thank you for your letter,sorry for not writing for so long i was really busy with my school. as your questions,i don't know how old your sister ,but you can buy a smartphone for you sister.smartphones are very easy in use by small children's.there are can be different games for brain and for entertainment. i have a little sister too ,boy she five years old ,and she have her own smartphone yet. we always play together without any technologies and it very interesting. we usually celebrate our birthdays in april because me and my mother have birthday in this month,and in august ,because my sister and my father have birthday in this month. it's very fun