The truth ... nobody really knows how language first began.
IS
15
Did we all start talking at around the same time ... of the manner in which our brains had begun to develop?
BECAUSE
15
Although there is a lack of clear evidence, people have come up with various theories about the origins of language. One recent theory is that human beings have evolved in ... a way that we are programmed for language from the
SUCH
15
One recent theory is that human beings have evolved in (...) a way that we are programmed for language from the moment of birth. In … words, language came about as a result of an evolutionary change in our brains at some stage.
OTHER
15
Language … well be programmed into the brain but people still need stimulus from others around them.
MAY / MIGHT / COULD
15
One likely possibility is that language is well be programmed into the brain but, … this, people still need stimulus from others around them.
DESPITE
15
From studies, we know that ... children are isolated from human contact and have not learnt to construct sentences before they are ten, it is doubtful they will ever do so.
IF / WHEN / WHENEVER
15
Research has shown, if ... else, that language is a social activity.
NOTHING
15
Research has shown that language is a social activity, not something invented ... isolation.