Entering the room I found Mary at the desk and a letter.A. seated; wroteB. sitting; wr

问题补充：

Entering the room, I found Mary at the desk and a letter.

A. seated; wrote

B. sitting; written

C. seating; writing

D. seated; writing

答案：

A. seated; wrote

B. sitting; written

C. seating; writing

(答案→)D. seated; writing

解析：考查非谓语动词做宾语补足语：句意：进入房间，我发现玛丽正坐在课桌旁边，写一封信。Be seated是表示状态“就坐”，find sb seated，发现某人坐着，第二空填writing，因为Mary和write是主动关系，选D。