Deaf people can't ,but they can learn how to move their mouths they can speak.
A. listen ,so
B. hear, so
C. listen, so that
D. hear, so that
网友回答
A. listen ,so
B. hear, so
C. listen, so that
(答案→)D. hear, so that
解析：考查动词辨析和连词辨析。Listen表示听的动作；hear表示听的结果；so that后面可以接结果状语从句也可以接目的状语句。So表示上下文的因果关系。句意：聋人无法听见，但他们可以学会如何动他们的嘴吧来说话。根据句意说明so that后面接的是结果状语从句。故D正确。