To study hard is very important.（改为it 作形式主语）

It is hard to study English g______well. it is time to study hard! stop talking .he is (hard) to study how to study hard? How to study hard? It is ____(必要的）to study English hard it is our ( )to study hard when we are young you think it is a good habit to study hard lt is necessary to study hard at school.同义句 To study hard is important for students.同义句 To study hard is the most important d____ of students. It is our duty to ＿（study） hard. It is the most important for you to study hard . 请问一个语法问题；English is hard to study,to study 在句中作什么状语啊 Linda is going to study hard at English this term对study hard at English提问对study hard at English提问 What I must do is study hard.这里的study为什么不加to呢. 连词成句 is,English,if,us,hard,to,hard,learn,for,it,study,well,easy i hard to study english