正确答案：填teacher of science
即：Miss Road is our science teacher.=
Miss Road is a teacher of science.
翻译：路德老师是我们的科学老师.
解析：你只给了三个空,其实最佳答案应该填science teacher of mine
即Miss Road is a science teacher of mine.
也就是形容词性物主代词和名词性物主代词之间的转换
形容词性物主代词+名词=名词性物主代词
有不明白的请继续追问,