假定你是李華，與留學(xué)生朋友Bob約好星期天下午一起去書店，因故不能赴約，請給他寫一封郵件，內(nèi)容包括：
1.表示歉意。
2.說明原因 ：父母忙于工作，所以要去照顧生病住院的奶奶。
3.另約時間。
注意：1.詞數(shù)80字左右。
2.可適當(dāng)增加細(xì)節(jié)，以使行文連貫。
Dear Bob，
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Yours sincerely，
Li Hua

【考點】提綱作文．

【答案】Dear Bob，
I'm sorry to say that I cannot go to the bookstore with you on Sunday afternoon.I have to take care of my sick and hospitalized grandmother because my parents are busy with work.I hope the change will not cause you too much trouble.
Shall we go on Monday morning？We can set out early so that we'll have more time to read and select books.If it's convenient for you，let's meet at 8：30 outside the school gate.If not，let me know what time suits you best.I should be available any time after school next week.
Yours sincerely，
Li Hua