他们想建一所全新的学校，但这样做会花费太多。

They want to build a completely new school, but ___to ___do ___so would cost far too much.

我强烈建议你不要借这么大一笔贷款。这样做对你的生意风险很大。

I would strongly advise you against taking out a loan of this size. ___To ___do ___so would be a great risk to your business.

人们普遍认为，如果提供更好的教育，孩子就能更好地为成年生活做准备。要做到这一点，钱是必不可少的。

It is generally believed that if [a] better education is provided, children are better prepared for adult life. ___To ___do ___so, money is essential.