有时there be结构是有用的，有时则是多余的。请阅读下列

题目描述

有时there be结构是有用的，有时则是多余的。请阅读下列句子，判断哪些是合适的，哪些需要删去there be结构：1.There is much controversy over the new tax law，2.Thereis a bo。k by Sylvia Porter，Howto GetMorefor YourMoney， that would interest you.3.There are two works by representative American economists to be added to the list.4.There are customer needs which are important in marketing plans.5.There is an answer to the problem.6.There are a sales proposal and a personnel report on the agenda.7.There is a resolution on employee representation to be presented for a vote this afternoon.8.There are two form of business organization described in the text.