商務(wù)英語口語：說明來信目的的短句

I am writing
    ·in response to n·P.
    ·in regard to n.p.
    我寫信
    回答...
    考慮到...
    ·in connection with n.p.
    ·on behalf of n. p.
    與...聯(lián)系
    代表...
    I am writing to
    ·ask about n.P.
    ·confirm n.P.
    ·confirm that+n.clause
    ·cancel n.P.
    ·request n .P.
    ·clear up n.P
    ·enquire about n.P.
    我寫信
    詢問...
    證實(shí)...
    證實(shí)+名詞性從句
    取消...
    要求...
    弄清楚...
    要求...
    ·inform you of n. p·
    ·inform you that+n. clause
    ·let you know that+n.clause
    ·let you know about n.P·
    ·tell you that+n.clause
    ·thank you for n. p. /Ving
    通知你+名詞短語
    通知你+名詞從句
    讓你知道+名詞短語
    讓你知道+名詞從句
    告訴你...
    感謝你...