I am very  ________  to know that  ________ 。(写信的原因)  I’m looking forward to  _______ 。(表示期待)

       I’m afraid that   ________。 (表述提出建议的原因) I’d like to suggest that ________。 First ________；then ________ 。(提出建议)

       I believe this kind of arrangement will __________。(建议的作用)

       Moreover, if ________ ， it is necessary for you to ________ 。(补充建议)

        Wish _______  。(祝愿)

                                                                                       Yours sincerely,

                                                                                         _______