After several campus attacks,many schools across the country have already taken action____接上thier campuses-----A.making,safe B.made,safe C.to make D.make,safe

问题描述:

After several campus attacks,many schools across the country have already taken action____
接上thier campuses-----
A.making,safe B.made,safe C.to make D.make,safe

选C,to take 表目的