During the scientific experiment, Mr. Chen carefully poured the water into the tube, with my classmates _______ beside to see what would happen.
Because of his illness, he has to stay at home all day __________ he were a bird shut up in a birdcage.
—Putting on a happy face not only helps us make friends but also makes us feel better.— __________.
Don't worry. We are __________ to find a way to solve the problem.
—What will you do for the children in the quake-hit area?—I am planning to __________ a large number of books to them.
After losing $ 20,000 on my last business, I'm not __________ this time.