WEBMay 7, 2020 · Directions: For this part,you are allowed 30 minutes to write an application letter. Suppose you were Yilu Zhao in a Shanghai senior high school, write an application letter to Yale University. You should write at least 130 words but no more than 500 words. 发信人地址. 写信日期. 收信人姓名、地址. Dear Sir,