[求助]2000-10-30

The sounds used in human languages to create meaning consist of small variations in air pressure can be sensed by the ear.

答案是C, pressure can...

请问中间是不是少了

THAT??

多谢指点

没错。这个句子的结构中，谓语是consist of，所以当can be出现，就表明要么是有从句，要么就是动词用错。

这样应该说是缺少了定语从句的连接词，加个which 就可以了

明白了

昨天乍一看到, 给蒙了一把