she went out,——her baby by itselfA leftB leavingC leavesD to leave

she went out,——her baby by itselfA leftB leavingC leavesD to leave
she went out,——her baby by itself
A left
B leaving
C leaves
D to leave

she went out,——her baby by itselfA leftB leavingC leavesD to leave
B
她出去了,留下孩子独自一人.
伴随状态.所以用动词ING

选择B，因为动作的发出人和动作是主动关系，结果状语

B leaving
现在分词做伴随状语，主语和它是主谓关系
她走了。留下她的孩子自己一个人。