题目内容：

These books ___ to him. They are mine. A.isn,t belong B.doesn,t belong C.aren,t belong D.don,t bel

优质解答

选D belong是动词,直接表示属于.所以它的否定就加do not,而不是加be not.因此选择D.These books 是主语,而且是复数形式,因此助动词do就用原型.因此是 do not belong,选择D