If you live in the country or have ever visited there, ______ are that you have heard birds singing to welcome the new day.
The accident has reached a point _____ the police have to be called in.
As a new graduate, he doesn’t know ______ it takes to start a business here.
Do you know ____ or not Maggie will go to the cinema with us tonight?
Do swim with others. Otherwise, you _________.
David was very unhappy for ____ to the party which was held in his cousin’s house.