:)
Today I have to leave the school fifteen minutes earlier because I am going to sit for a computer examination.
2007-02-01 11:39:27 補充:
1. 參加考試> 最好或正確是用 sit for an examination 或 take an examination,而應少用 attend an examination2. leave the school 而不應寫成leave from school3. 如要轉為請求的句子As I'm going to sit for a computer examination (later today), may I leave the school fifteen mintues earlier?:) OK?