完成对话 Speaker A: Thanks to John, we’ve lost our most important client. 　　Speaker B: I’ve told you he’s not proper for the position. 　　Speaker A: _______.

A、 I don’t really agree with you
B、 I should have listened to you
C、 It doesn’t matter. I trust him
D、 Thank you for being so helpful

【正确答案】 B

【答案解析】【解析】表达后悔。【点评】should have done表示原应该做但没有做的事情。