Human speech is infinitely productive. This means that:
a. Humans can combine words into new, meaningful utterances that they have never heard before.
b. Human beings never become tired of talking.
c. The more human beings talk, the more productive they are economically.
d. Every normal adult can produce an infinite number of sounds.
e. Human speech is always directed toward some productive purpose.
Question 2
When we say that human language is conventional, we mean that:
a. Humans are very conservative and rarely change their way of speaking.
b. The words in human languages have no inherent relationship to the things they stand for.
c. All languages follow the same grammatical rules or conventions.
d. Human language was invented at a convention.
e. All human languages have basically the same structure and differences among them are only superficial.
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