I am so sorry to have kept you.waiting. 十分抱歉，讓您久等了。
It's a pleasure to see you again. 很高興又見面了。
I have often heard about you. Glad to meet you. 我已經聽說過您了，很榮幸見到您。
半個句型要記牢
hear about (聽說)
Tip:
注意 hear about與 hear of的區別: hear of sb. I sth.表示"聽說，聽到，提起某事直接指其對象，如 I will not hear of this business. (別跟我再說這事了);hear about sb./ sth.表示"聽到關於某人或某事的消息如 Did you hear the latest news about Li Ming? (你聽說過李明的最近情況嗎?)。簡言之， hear about和 hear of，兩者都表示聽說，前者表示只是聽說知道而已，而後者表示聽說，而且是非常瞭解。
