The movie covers all of Chinese history. It is _________ worth seeing again.
— Must we get to the theater at 7:00?— No, you _______. The movie begins at 8:00.
Most students think Lady Gaga is one of _________ singers in USA now.
I knocked on the door several times but answered, so I left.
Tim got up late this morning, _______ he had to go to school by taxi.
— ______ is the best student in your class?— Lisa.