—Will you be able to finish the report before Friday? —I can’t ________ anything, but I’ll try my best.
-----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.
_________ the lecture going on, the students got more and more interested.