题目

李老师利用Word帮助班上的同学修改作文，他可以使用“自动更正”功能检查出常见的错别字，也可以使用“修订”功能标识出作文中被修改的具体内容。 答案：正确 In the final exam of last term, our maths teacher Mr.Wu gave us  ________we all couldn’t work out . A．such a difficult problem that B．so a difficult problem as C．so difficult a problem that D．as difficult a problem as