Why do some researchers believe chimpanzees have not mastered true human language?
A. Apes lack the physical ability to speak; they lack mental ability.
B. Apes can only mimic language; they do not make sense.
C. Apes use language to get rewards; they only communicate with humans.
D. Apes do not understand syntax; they do not use language spontaneously.
Answer:D
Why do some researchers believe chimpanzees have not mastered true human language?
A. Apes lack the physical ability to speak; they lack mental ability. B. Apes can only mimic language; they do not make sense. C. Apes use language to get rewards; they only communicate with humans. D. Apes do not understand syntax; they do not use language spontaneously.