It is not always easy for the public to see ______ use a new invention can be of to human life.
问题描述：
It is not always easy for the public to see ______ use a new invention can be of to human life.
A whose B.what C which D.that
答
答案是B公众对于一项新的发明在人类生活中有“什么”用处并不总能轻松地看出来.see后面接的肯定是一个宾语从句了,从句缺少一个代词“什么”,that和whose都不能选,因为它们在名词性从句中不能作代词,重点在于what 和 ...