—Who ______ it be that hasn't handed in his homework?—It ______ be Bob. He handed it in yesterday.
_________ team wins on Saturday will go through to the national championships.
The professor, _____ some of his assistants, _____ to attend our discussion this afternoon.
______ is often the case, we have worked out the production plan.
He didn’t make ________ clear when and where the meeting would be held.
In an attempt to save money, some housewives like to go from shop to shop to search for real _______.