英語(yǔ)提問(wèn)：麻煩各位幫我分析以下句子的成分,搞不清楚了.
The inspector suggested that he was lying because,that morning,the 8 o'clock train broke down,so the man must have caught the 8.25.最主要是so后面這句話不知做何解.because,that morning,the 8 o'clock train broke down .是狀語(yǔ)從句；The inspector suggested that he was lying.是主句；so the man must have caught the 8.25.這句話又是個(gè)什么東東呢.關(guān)鍵是so又不是連接詞,因?yàn)閎ecause與so不能出現(xiàn)在同一個(gè)句子中,so 只能做副詞.但是副詞不能連接兩個(gè)分句,請(qǐng)學(xué)英語(yǔ)的朋友幫忙解答.