3.Thank you for your prompt reply.
感谢您的及时回复。
Thank you for your prompt reply. I will visit you at your office this Friday at 2 p.m. Thank you.
感谢您及时回复。我将于本周五下午两点去您的办公室拜访您。谢谢。
4.I appreciate you taking the time to write us.
非常感谢您抽空给我们回信。
Thank you for taking the time to e-mail me.
感谢您抽空给我们写回信。
I appreciate you taking the time to reply to my request.
非常感谢您应我的要求抽空回复我。