I hear that Hu Jintao will come to Nantong because the Sutong Bridge is open to traffi

问题补充：

--- I hear that Hu Jintao will come to Nantong because the Sutong Bridge is open to traffic soon.

--- Do you know ?

A. what will he talk about

B. where will he give a talk

C. how will he come

D. when he will arrive

答案：

A. what will he talk about

B. where will he give a talk

C. how will he come

(答案→)D. when he will arrive

解析：D 考查宾语从句。宾语从句用陈述句语序，即“主语+谓语+宾语”，will/ do/can等不能放在主语前。排除A、B、C。