他戴上眼镜，以便能更清楚地看电视。

He put his glasses on ___so ___that he could see the television better.

我故意没吃午饭，以便晚上会饿。

I deliberately didn't have lunch ___so ___that I would be hungry tonight.

把钥匙放在显眼处，以便我记得带上。

Leave the keys out ___so ___that I remember to take them with me.