假如你是李華，國(guó)際學(xué)校的教師Tom邀請(qǐng)你星期六參加該校舉行的"中國(guó)文化日"活動(dòng)。但你爺爺突然生病住院，你要和父母一起去醫(yī)院探望，不得不謝絕他的邀請(qǐng)。請(qǐng)根據(jù)下列要點(diǎn)用英語給Tom寫一封電子郵件。寫作要點(diǎn)如下：
1.謝絕邀請(qǐng)；
2.說明理由；
3.預(yù)?；顒?dòng)成功。
注意：
1.詞數(shù)100左右；
2.可以適當(dāng)增加細(xì)節(jié)，以使行文連貫；
3.郵件開頭和結(jié)尾已為你寫好。

Dear Tom，
__________
Yours，
Li Hua

【考點(diǎn)】提綱作文．

【答案】Dear Tom，
Thank you very much for inviting me to attend the "Chinese Culture Day" to be held at your school this Saturday.I have been looking forward to it.I believe it will give your students more ideas about Chinese culture and will be great fun.However，much to my regret，I shall not be able to make it now.My grandpa suddenly fell ill and is in hospital.I will visit him with my parents this Saturday.
I'm awfully sorry for the sudden change of my plan and feel it a great pity to miss the opportunity to be with your students.I wish the activity a great success and hope I will have another chance to join you in the future.
Yours，
                                                                                             Li Hua