Dear Aldrich,
I would like to express my apology that I can't meet you at the airport on time.Because I am busy making preparation for yesterday"s test.And I must go to hospotai to see my brother,he is ill in bed .So I maybe pick you up behind time.About an hour later I can go to the airport.Can you wait me for an hour?Please wait for me at the airport hall .Have a good time!
Yous,
LiHua.