一道单选题目高三老师看下!

是的，就像你理解的那样，把长句拆成短句,she must be looking forward to his return 和he himself is looking forward to seeing her,as much as把两个简单句连了起来.

我觉得应该理解为
she must be looking forward to his return as much as he himself is to seeing her.
她在他回来之前应当被照顾的和他亲自照顾她时一样好。

she must be looking forward (as much to his return as he himself is )to ____ her.
look forward to doing
括号里是修饰成分，可以不看

这句话的意思是说她一定象他想看到自己一样想看到他的归来。
as much as 表示程度相同
后半部分应该是省略了(looking forward),因此本来是he himself is looking forward to seeing her.中括号的部分。as much as
至于，as much as,是“和。。。差不多”的意思，我个人理解，这里应该是把to his return 放到了as much as的中间。做平衡整个句子前后的作用。