I am certain David's told you his business troubles.-----,

问题描述:

I am certain David's told you his business troubles.-----,
it's no secret that he owes money to the bank.A however B Anyway C therefore D though 选b 整句怎么解释

我敢确定大卫告诉你他的生意问题的,不管怎样,他欠银行很多钱已经不是秘密了.