________________(cure) the cases of blindness ,the doctors d

动名词也可以做主语，但是要看意思 动名词做主语的例子： Reading books is good for us. 这里表示 ”读书这件事对我们很好“， ”读书这件事“作为一个名词看待，所以用动名词 To do 形式做主语就是强调目的，如： To make sure the students are safe, our school has built several school buses. 为了确保同学们的安全，我们学校修了很多校车 如果说”Making sure the students are safe, our school has built several school buses" 就翻译不通了，意思不对 Curing 开头的例子： Curing the cases of blindness is important.