我总是把水果放在冰箱里，以防止昆虫靠近。

I always keep fruit in the fridge ___so ___as ___to keep insects off it.

我也对滑雪课感兴趣，以提高我认为不太高的水平。

I would be interested in having skiing lessons too ___so ___as ___to improve my level which I consider is not very high.

她努力学习，以便通过考试。

She studies hard ___so ___as ___to pass the exam.