After several campus attacks,many schools across the country have already taken action to maketheir campuses safer.为什么用 to make/ safer
问题描述：
After several campus attacks,many schools across the country have already taken action to make
their campuses safer.为什么用 to make/ safer
答
safer
答
在多起校园袭击案发生后,全国许多学校都采取了措施来使得它们的校园更加的安全.
to make 表示目的,采取措施来使得~所以要用 不定式 to make
使校园更安全 因此应该是 safer （safe的比较级）
）