It's n____ for you to study hard if you want to get good gra

It's n____ for you to study hard if you want to get good gra If you want to be healthy, it's n____ for you to eat some ve If you are n____ here,it's e____ for you to get lost because you ____ study hard if you want to get good grades in englis You must study hard if you want to get good grades in Englis 翻译if you want to get some thing,you must work hard for it这段英 it is good for you to study hard 和 it is good of you to stud 初二英语填空一题it's [] to study hard for students to get good grade we have to study hard if we want to get good grades.对study h ( ).You ___study hard if you want to get good grades in Engl if you want it to be good you think it is a good habit to study hard