.主谓一致练习题答案解析（30题）1. There is always a possibility that the infection will return, but so far there _ been no signs of trouble.A. hasB. haveC. areD. had答案：B. 解析：在由not onlybut also, not justbut, or, eitheror, neithernor连接主语的句子中及在there be句型中，谓语动词的单复数按就近原则处理，即按与谓语动词最靠近的那个主语来确定谓语动词的单复数形式。2. This kind of stories _ instructive while stories of that kind _ harmful to children.A. is; seemsB. are; seemC. is; seemD. are; seems答案：C.解析：this kind of storie
