You need a ______ weed killer that won't damage your garden flow

You need a ______ weed killer that won't damage your garden flowers.（select）
【正确答案】：selective
【题目解析】：根据题意，“你需要一个选择功能多的除草机，这样才不会损坏花园里的花。”本空为定语修饰除草机，故将动词select改为形容伺selective。答案为selective。