In this world there is no shortcut to take. So people, no matter how clever they are, can’t succeed_______ they work hard.
He may come,but I'm not sure ______ that.
I love music,so I'm going to learn how to ______ the piano this term.
The cake tastes ______. Can I have another one?
I need ______.
It’s dark in the room. Why not ______ the light?