study hard ,or you can keep pace with the time为什么不是to study hard?祈使句?但开头一定要ing或to do的嘛?

Study hard,or you’ll fall behind. Study hard,or you'll fail the exam改为复合句 What you have after hard work,study,or exam? Study hard,__ you'll catch up with your classmates.A.or B.so C.while D.and please study hard or please study hardly Study hard,or you'll fail (in) the exam中的study为什么是动词原形 Study hard ,or you will fail in the exam 改为同义句 STUDY hard,___you will___-the exam Study hard ,or you will fail in the exam or为什么不用and Study hard or not is up toStudy hard or not is up to you to necessary是什么意思? If you don't study hard ,you will ___sooner or later.选择填空A.fall in love. B.fall down. C.fall in . D. fall behind ( )a student,you should study hard.填空.like , as , you are ,or your you must study hard,or you won't get good g__ You should study hard,or you _____ (miss) many good chances. you work or study? study hard.you are sure to have a good result in the exam A.or B.and C.for D.but 什么you 什么study hard Study hard,or you can't catch up with others.(同义句转换) what i want to say is ___,you must study hard.this or that?