最佳答案:

　　1． will always remember

　　2． the unluckiest day of my life

　　3． When I woke up

　　4． couldn't believe my eyes

　　5． an unlucky

最佳答案:

　　One possible version :

　　Dear David,

　　We had an English exam yesterday． Now I feel very worried because I don't think I did well in it．

　　Firstly, I arrived late for the exam for I overslept in the morning． When I got to the classroom, the exam had been on for half an hour． So I hurried to do the exam． After the exam I realized that I had made a lot of mistakes in it．Terribly, I was unable to fully understand the writing part．

　　Now I'm very afraid I couldn't pass the exam． I'm really upset．

　　Yours,

　　Li Ying

最佳答案:

　　12345BBDDB

最佳答案:

　　1． had; seen

　　2． Luckily

　　3． had written

　　4． saw; accident

　　5． had started learning

最佳答案:

　　1． accident

　　2． cancelled

　　3． market

　　4． missed

　　5． expect