用括号里的词语的适当形式填空dave works very (hard),so his grades are good

问题描述:

用括号里的词语的适当形式填空dave works very (hard),so his grades are good

就是用hard,hard做副词是努力地,坚硬地,辛苦地的意思,而hardly作为副词是几乎不,刚刚,勉强是的意思.work hard可以作为固定搭配来记哦!为什么啊?为什么不用hardly啊?不谢不谢