What about the protection?— Let’s keep the surface ________ dirt by putting a cover on it.[ ]

Jenny isn’t at home_______.

The U.S. official said North Korea — andIran — should follow in the steps of Libya, which last December said it wouldwork__________ to allow international weapons inspectors to do their work.

So convenient _______ to pay by credit card that more and more people apply for their credit cards.

Could you tell me ____ —It’s twenty minutes by underground.