Susan’s face turned red when she found the teacher’s eyes her.A. stared atB. staring atC.

问题补充：

Susan’s face turned red when she found the teacher’s eyes her.

A. stared at

B. staring at

C. fixed on

D. fixing upon

答案：

A. stared at

B. staring at

(答案→)C. fixed on

D. fixing upon

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