What is up?Jim should be here by now.what-----him?A was kept B is keeping C had kept D will keep

问题描述:

What is up?Jim should be here by now.what-----him?A was kept B is keeping C had kept D will keep

选择B 原文的意思是:问:怎么了?答:Jim现在应该已经在这里的(实际上还没有来),是什么耽搁了呢?
因为现在Jim仍被某事困住,所以用现在进行时