该公司想进入新市场，但（这样做）需要巨额投资。

The company wanted to enter the new market, but ___to ___do ___so would require a huge investment.

我们的目标是为所有儿童提供免费教育。（为此），我们需要整个社区的支持。

Our goal is to provide free education to all children. ___To ___do ___so, we need the support of the entire community.

医生建议她不要跳过复诊。（这样做）可能会危及她的康复。

The doctor advised her not to skip her follow-up appointments. ___To ___do ___so could jeopardize her recovery.