They work very hard.（英译中)

He works very （).A.hardB.hardlyC.harderD.harded

Being a parent can be hard work.（英译中)

They looked forward very much to seeing him again.（英译中)

I can hardly wait to hear the news.（英译中)

That was a hard time.（英译中)

______make good progress.A．Only by working hard they canB．By only working hard they canC．O