Question

一个英语句子，帮忙分析

一个英语句子，帮忙分析some eyewitness report that a bag was about to be loaded on board ,but it exploded during a security check 这句话是宾语从句+伴随状语吗？帮忙分析一下句子，和语法知识点。谢谢

Answer 1

宾语从句中含有but的并列句

Answer 2

。