本模块的写作要求是回复一封电子邮件，属于应用文，时态以一般现在时为主，人称以第二人称和第一人称为主。
对电子邮件的回复一般可分为三部分：第一部分写收到邮件的心情并引出话题；第二部分具体回复邮件中所提到的问题，并提出自己的建议；第三部分的结尾部分表达一下愿望。
1．常见的开头语：
(1)It was great to hear from you.
(2)I'm very glad to have received the email you sent me.
(3)I was so pleased to hear from you, and I am writing to give you some tips on job interviews.
(4)Nice to receive your email asking for advice on how to learn English well.
