一个关于there be 句型 谓语单复数的问题
一般情况下there be 句型其谓语形式我记得都应该采取就近原则,如there is a pencil and two pens on the desk 和 there are two pens and a pencil on the desk都是正确的,但是我今天在新概念的书里面看到讲解两个名词由and连接,其谓语的单复数问题时,书里面说如果两者是整体的话就用单数,如果是单个的话则用复数,有两题例句是这样的：
1.there is a knife and fork missing.
2.there are a light bulb and a screwdriver in the drawer.
第一句毋庸置疑是对的,但是第二句让我不得其解,there be不是采取就近原则的吗?是我错了还是书错了呢?