We lie because what we furious about feels so minor and pathetically petty for a grown-up to care about.
Given how risky the truth about us can feel,we had to learn to be masters of deception.
想请问第一句与第二句的句型结构，
第一句的what we furious about 为什么没有动词，
第二句的Given 开头的句型结构与文义，不知道哪个是主词。
谢谢