题目

refuse, I, should , you, think, don’t, them____________________________________________________________. 答案：【答案】I don't think you should refuse them【解析】句意：我认为你不应该拒绝他们。根据所给单词可知，句子为复合句，I don't think为主句，属于否定前移，此句的主语是you，动词是should refuse，宾语为them。故填I don't think you should refuse them. 下列含有非极性键的共价化合物是 [　　] A． HCl B． Na2O2 C． C2H2 D． CH4