Question

【题目】After several campus(校园) attacks , many schools across the country have already taken action their campuses.
A.making, safe
B.made, safe
C.to make, safer
D.make, safe

Answer 1

【答案】C
【解析】句意：在几次校园袭击案之后，全国的许多学校已经采取行动把他们的校园变得更安全。take action to do sth采取措施做某事。故选C。