Question

they walked along the street,talking and laughing and____ at the end of the street.

Answer 1

B.separated
是对的。
C.separating
不行。
talking
and
laughing
是walked
along
the
street的伴随状语，and后面的情况只能与walked
along
the
street产生顺承关系。
正确句意：
他们有说有笑沿街行走，最后在终点分手。
they
walked
along
the
street,talking
and
laughing
andseparatingat
the
end
of
the
street.这样的表达会产生逻辑谬误。翻译出来即知：他们沿着大街一路走去，一边说呀笑呀，一边在街头分手呀。显然句子讲不通。