The water level of the river has increased _________ half a meter since it began to rain 7 days ago.
I doubt _______ he will win or not.
-----I’m afraid I’ve broken your chair. -----.I can easily get it fixed .
It was not until dark ______ he found that it was the correct way to solve the problem.
_______ breaks the law should be punished.
Einstein was __ a great scientist. He did a lot for human rights and progress.