Four days __________ enough for us. We still need ________ two days.

There ___________some milk and many hamburgers on the table.

No one in the department but Tom and I_________ that the director is going to resign.

There ______ a football game tomorrow evening, and I must stay at home to watch it.

The university estimates that living expenses for international students________around $8,450 a year，which________a burden for some of them.                     (2013·湖南，33)