If it ________ for the heavy rain then, we would have arrived here ahead of time.
Only by increasing the number of doctors by 50 percent _______ properly in this hospital.
--- So you didn’t say hello to Miss Wang last night?--- Well, I stopped and smiled when I saw her, but she _______ me and walked on.
Although _______ to be the best in a recent science competition, the student remains modest.
In much of the animal world, night is the time ________ for sleep - pure and simple.
If you are buying today’s paper from the stand, could you get _______ for me?