—Can thoseat the back of the classroom hear me?—No problem.A. seat　　　B. sitC. seated　　　D.

问题补充：

—Can thoseat the back of the classroom hear me?

—No problem.

A. seat

B. sit

C. seated

D. sat

答案：

A. seat

B. sit

(答案→)C. seated

D. sat

解析：考察形容词。形容词短语seated at the back of the classroom作为定语修饰名词those. ABD三项都是动词的形式。结合句意可知Ｃ正确。句意：坐在教室后面的那些人能听见我说话吗？