hard-study =studying hard?是固定词组么?那hard-work也是词组?

hard-study =studying hard?是固定词组么?那hard-work也是词组? 是keep study hard还是keep studying hard? Every student __________ hard.A.study B.studies C.studying studying hard to get good grades一句中为何用studying而不是study The difficult problems make him ______.A.studying hardB.study hardC.to study hardD.studies hard 我在努力学习 是 I study hard还是I studying hard? ask us to study hard 和 ask us studying hard 的区别 try to study hard 和 try studying hard 有什么区别? He promsed ________ hard after the parent-teacher meeting.选择A.to studying B.will have C.studying D.study ______ hard is our work. A.Study B.Studies C.Studying D.Studing We are studying hard in order to make great p____inour study Is your younger brother studying hard?Yes,I think he seems ___hard.选项A:study B studying C to be studying D to have studied求理由 I am working hard to study english 对吗,如果对,study为什么不是进行时studying的形式 study hard They are study English hard 和 They study English hard哪句对?They are study English hard 和 They study English hard 哪句对?为什么错.为什么对.那They are studying English hard 和 They study English hard 有什么区别。 _____ is ____ hard work.A.study;a B.studies;a C.studying;a D.studying;/为什么选D不选C、讲解一下 You must spend as much time as you can _________(study)hard at English to catch up with others.填to study 还是studying?为什么? 动词词组作主语时,动词的形式比如 :Study hard brings you good grades.还是Studying hard brings you good grades.