When she came in she found a stranger at the back of the classroom with his eyes upon h

问题补充：

When she came in, she found a stranger at the back of the classroom with his eyes upon her.

A. sitting; fixing

B. sat; fixing

C. seating; fixed

D. seated; fixed

答案：

A. sitting; fixing

B. sat; fixing

C. seating; fixed

(答案→)D. seated; fixed

解析：句意：当她走进来的时候，她发现一个陌生人坐在教室后面眼睛看着她。第一空是“find+宾语+宾语补足语”结构，因为seat是及物动词，stranger是它的宾语，所以用seated做宾语补足语，第二空是with复合结构，“with+宾语+宾语补足语”，因为his eyes和fix是动宾关系，用过去分词做宾语补足语，选D。