Question

10. I should thank you        speaking here and for ensuring me such an attentive audience.

   A. for the privilege of   B. on behalf of

   C. because of   D. in consideration of

Answer 1

10. A句意为："感谢您给我如此殊荣在此发表演讲，同时也感谢您为我请来了如此专心致志的听众。"短语for the privilege of的意思是 "由于……殊荣"。