get a good grades这里有了冠词s为什么还要加s

get a good grades这里有了冠词s为什么还要加s get good grades get good grades 怎样用get good grades造句 ( )good grades,you should study hard.A Getting B Get C For get D To get I hope him to get good grades A hope Bhim Cto get Dgrades改正错误 Good _____habits help me get good grades.A.studyINGb studyC studiedD studies 请翻译一下get,good,grades It s my dream ( get)good grades 翻译well,i wantto be a teacher.i am going to get good grades. My brother a _______works hard .He can get good grades 急 my sister studied hard （A：gets；B：got；C：getting；D：to get；）good grades. i wonder why i can not get good grades a-___i have been studying so hard .I hope to get good ________this term.A.grade B.class C.grades D.classes He write____than us.So he can't get good grades in writing.A more careful .. how can he get good grades when he won't study 这句话如何翻译,这里为什么用when? Jimmy works hard,so he always_____.A.gets bad grades B.fails the exam C.get good gradeD.gets good grades good,good,help,health,grades,can,us,get,to联句