答not only 的倒装句应该是这样的先看这个陈述句
reading books can not only give us knowledge but also fill our mind.读书不仅能给我们知识还能充实我们的心灵。看倒装句not only can reading books give us knowledge， but also it can fill our mind.
not only but also位于句首是半倒装，翻译成不但而且。
例如 not only is he good at math，but also he likes English.
