_______is known to us all is that the 2016 Olympic Games will take place in Rio de Janeiro.
—Who______ it be that is knocking at the door?—It ______ be Father, but I’m not sure.
The letter he had been looking forward ____________ this morning.
He told ______ lie to his friends that he was heavily in _______ debt because he wanted to borrow some money from them.
―I’ve studied growing plants as one of my interests. Could I make some suggestions?―_____.
We need a more capable leader, _____with a strong will and as well as a good sense of humor.