It is obvious to the students ______ they should get well prepared for their future.
The manager was concerned to hear that two of his trusted workers _____.
My watch _____ at nine o’clock, but now it _____.
He did all he could to _______ but nobody noticed him.
Many famous hospitals are competing _____ an excellent doctor, who came from the USA last week.
He accidentally _____ he had quarreled with his wife and that he hadn’t been home for a couple of weeks.