（） a natural skill or ability

A．humans have a natural, innate ability to acquire and create language

B．focusing on how to use a language is the fastest way to communicate

C．language learners learn primarily from their peers, who are also learners．

D．because human languages are changing constantly, so they are flui

D．

Mny humn lnguges of the world hve certin common chrcteristics EXCEPT ththumnsMny humn lnguges of the world hve certin common chrcteristics EXCEPT ththumns hve nturl, inntebility tocquirend crete lnguge. B．focusing on how to use lnguge is the fstest wy to communicte. C．lnguge lerners lern primrily from their peers, whorelso lerners. D．becuse humn lngugesre chnging constntly, so theyre fluid.

A．humans have a natural, innate ability to acquire and create language

B．focusing on how to use a language is the fastest way to communicate

C．language learners learn primarily from their peers, who are also learners．

D．because human languages are changing constantly, so they are flui

D．

A．Three

B．Only one

C．Two．

D．Four．