Question

英语：never once considering how in the world she was to get out again

Answer 1

never
once
considering
how
in
the
world
she
was
to
get
out
again
她根本没有考虑过如何才能爬出来。
consider后面接how引导的宾语从句，be
to表示在不远的将来要做某事，她当时没想过，所以用was
to.

Answer 2

去掉几个修饰成分如下
never
considering
how
she
was
to
get
out
again,这样子就很明了了
once是曾经
in
the
world
=
on
earth
表强调