You know he is not going to let us leave early if we __________ get the work done.
Mr. Smith didn’t understand _____ made his son so upset that evening.
Although cats can not see in complete darkness, their eyes are much more ______ to light than human eyes.
Don’t mention that at the beginning of the story, or it may _______ the shocking ending.
I’m tired out.I stayed up the whole night, ______ for my midterm math exam.
The first prize goes to _______ makes the greatest contribution to the company.