下列各句中，加点的成语使用恰当的一项是

Mr Smith was having a meeting at that time; otherwise he _________ over to help us.[ ]

He failed the exam again！What should I do，Miss Wang—In my opinion，your son is________than stupid.

下列各句中加横线词不完全属于古今异义的一组是：（ ）

There is ________ invitation on the desk. _______invitation is from Lucy.