题目

根据句意及所给汉语提示，完成下列句子，每空一词。【1】What they said seemed to ________ ________ ________(有道理).【2】The knives ________ ________ ________(被用来做……) cutting things.【3】Kevin ________ ________(想出) another way to deal with the problem just now.【4】The zipper is widely used ________ ________ ________ ________(在我们的日常生活中).【5】The telephone is ________ ________ ________ ________(如此伟大的发明). It helps people a lot.15．13世纪末，兴起于小亚细亚的封建帝国是（　　）A．阿拉伯帝国B．大和帝国C．东罗马帝国D．奥斯曼土耳其帝国