it is hard to think of a world without you

IT is hard to think of a world without metals什么句型 you think it is a good habit to study hard it is hard to say with or without you! do you think it is a good habit to study hard nowadays,it is hard to imagine how often you are a victim of It is hard to imagine a large city without a policeman,but s 一道英语专四题：It is hard to imagine a large city without policemen it is good for you to study hard 和 it is good of you to stud who do you think will win the race? it is hard to say,和it de It is _____(use)to talk much without working hard What do you think of the question?It is __ for everyone to a To live in a world without you is more painful th