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Task 5 Letter 1 June 10, 2006 Dear Sir or Madam, Last night the central heating system that you installed(安装） in our factory exploded. The explosion caused a great deal of damage and our stock of fashion clothes has been completely ruined. We must insist that you replace the heating system immediately and pay for our damaged stock, valued at $400,000. We look forward to your reply. Yours faithfully, Bill Black Assistant Manager Letter 2 June 15, 2006 Mr. Black, We are writing in connection with the recent explosion at your factory. We would like to point out that we have been manufacturing heating systems for over 25 years and we have never had a complaint before. We have asked surveyor to find out the cause of the explosion. We are hoping that we can provide you with a satisfactory answer soon. Yours sincerely, Mary Miller Service Manager 题目： What happened in the factory last night? The central heating system___________
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