After four years’ research, we now have a ______ better understanding of the disease.
(2012辽宁卷)This machine is very easy . Anybody can learn to use it in a few minutes.
_____to work overtime that evening, I missed a wonderful film.
We’re having a meeting in half an hour. The decision ______ at the meeting will in the future of our company.
Before you quit your job, ______how your family would feel about your decision.
We've had a good start, but next, more work needs ____ to achieve the final success.