【单选题】根据以上内容,回答下列各题。 Passage Four Ever since humans have live on the earth,they have made use ofvariou8 forms of commu-nication.Generally,this expression of thoughts and feelings has been in the form. ofora...
A.
When language is a barrier,people will find other forms of communication.
B.
Everybody uses only oneform. of communication.
C.
Nonlinguistic language isinvaluable to foreigners.
D.
Although other forms,apart from language of communication exist,theyare of little value.