情态动词should的用法,
问题描述：
情态动词should的用法,
答
1.Should表示劝告、建议、命令,其同义词是ought to；在疑问句中,通常用should代替ought to.如：You should go to class right away.Should I open the window?Should的含义较多,用法较活,现介绍三种其特殊用法.请看...