The impatient driver received a ticket for speeding. He       so fast.

A．shouldn’t have driven

B．wouldn’t have driven

C．couldn’t have driven

D．mustn’t have driven

刘云山讲话指出，开展“两学一做”基础在学，学要区分层次、区分对象，增强针对性和实效性，按照习 * * * * 重要指示精神，就县处级以上党员领导干部来说，要学得更深更多一些，要求更高更严一些。具体来讲，学系列讲话主要是？