it is time to study hard!
it is time to study hard!
It is hard to study English g______well.
it is our ( )to study hard when we are young
It is ____(必要的)to study English hard
It is our duty to _(study) hard.
you think it is a good habit to study hard
It is the most important for you to study hard .
you it's time to study .you should study hard understand
it is good for you to study hard 和 it is good of you to stud
连词成句 is,English,if,us,hard,to,hard,learn,for,it,study,well,e
It is important that enough time _____A_ to study.
To study hard is better than _____.A.to kill time B.killing