---What`s in your box?---There is ___ in it. It`s empty.
My brother plays ______ basketball well but he doesn’t play _______ piano well.
Jeans are too tight , so I _________ trousers.
Usually, it’s easier to make ________ decision than to take ______ action.
We must ________ ourselves _______ our work.
He hardly worries about his English, _______ ?