The craze fans ________ outside the hall, and they will wait till the movie star comes.
After careful consideration, he decided to take the position, ______ he knew it would be difficult for him.
The teacher handed our writings back to us, ______ some necessary changes.
You must ______ that the power is off before you leave the lab.
At such gatherings, people ______ are not necessarily your relatives or friends.
—We’d better go downstairs right now for lunch. —______ They serve food 24 hours a day.