请求详解：Nancy's gone to work but her car's still there.she___by bus.为什么用must have gone?
问题描述：
请求详解：Nancy's gone to work but her car's still there.she___by bus.为什么用must have gone?
A.must have gone B should have gone.C ought to have gone D could have gone.虚拟语气怎么掌握啊,
答
Nancy has gone to work but her car's still there她已经去工作了但是车还在那must have gone 表示肯定的猜测 （她肯定是坐公交车去的） should have done / ought to have done 都表示本来应该could have done 本...