Mary本周四晚上要举办一个生日聚会，她请你参加．但你这一周要替父母照顾妹妹，他们去四川旅游了，到本周六才能回来．而且本周五要考试，你还想认真为考试学习．因此你无法参

Question

_____ Mary 本周四晚上要举办一个生日聚会，她请你参加．但你这一周要替父母照顾妹妹，他们去四川旅游了，到本周六才能回来．而且本周五要考试，你还想认真为考试学习．因此你无法参加，对此你感到很抱歉．假如你叫To请你写一封信给Mary说明情况．要求：1  参考提示内容，可适当发挥； 2、语句通顺，意思连贯，书写工整；3、文中不得出现任何真实信息（姓名、校名和地名等）； 5、词数：不少于70词．

Answer 1

Dear Nancy，
Thanks for your invitation．I'd love to but I am so busy．（不能参加）My parents have gone to Sichuan to have a trip，and they will come back this Saturday，so I have to look after my sister．This Friday we will have a test，I want to study hard for the test to get a good grade．【高分句型一】（原因）I'm sorry that I can't go to your birthday party．【高分句型二】But I have a gift for you and happy birthday．I hope you all have a good time at the party．（抱歉和祝福）