Bob insisted that his methord(was)pratical and his theory(be

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Bob insisted that his methord(was)pratical and his theory(be published)in the book.
括号里填写的是正确答案,我不知道为什么,求高人用语法知识给我讲解这道题

insist 后接that从句,句中的时态可分为两种,像你的第一个空,作系表结构,“坚持觉得...”后面的句子不用虚拟,使用正常的时态,但第二空,“坚持认为...（应该）”则为虚拟语气,从句中用should +动词原形（should 可省略）
英语中类似的词还有suggest ,作"暗示,表明"讲时不虚拟,作“建议”讲时要虚拟.同上.
例如：the look on his face suggested that he passed the exam.
the teacher suggested that we (should) work hard to achieve our dreams.

Bob insisted that his methord(was)pratical and his theory(be John insisted that it was not his fault and that he be allow His mother was badly ill.He insisted that a doctor___immedia He insisted that he_____ right,and so he insisted that his p He insisted that he was right in doing that,though his fathe He insisted that his brother__the window.It was clear that s His theory proved to be right. His theory proves to be scientific. He insisted that Mary should be invited to his birthday part few people could understand his theory at that time and even Little Tim was ill.His mother insisted ______ bob said that his eyes ()(hurt)