She will have a holiday as soon as she ______ the work next week,
___________ the three questions, which one is the most difficult to answer?
The Yellow River is __________ river in China.
The students come to school early, but the teachers come __________.
--We spent all our money because we stayed at the most expensive hotel in town. --Why didn’t you stay at _________ one?
He always looks _______. Now he’s looking ________at his new drawing.