That is the best way you thought of _______ into trouble.
A.stopping some young people to get
B.to prevent some young people getting
C.keeping some young people getting
D.preventing some young people getting
答案:B
考察句子结构。You thought of 的宾语是way,作way的定语,主句为the best way to prevent some young man (from) getting into trouble, prevent用法是,prevent sb (from) doing sth ,组织某人干某事
句意为,那是你认为最好的阻止年轻人染上麻烦的方法。