Students should pay attentions to the teachers in class.A. hearB. listen toC. listening t

问题补充：

Students should pay attentions to the teachers in class.

A. hear

B. listen to

C. listening to

D. hearing of

答案：

A. hear

B. listen to

(答案→)C. listening to

D. hearing of

解析：pay attention to，其中to 为介词，后接动词ing ，故选答案为C