He will never give up the chance to go abroad for further education _____ the situation is.
The man showed us so heavy a stone _______ no man can lift.
______ he met with the difficulty did he realize the importance of our help.
There is not one of us wishes to help you . We are doing our best .
—Alice, you feed the bird today; ? —But I fed it yesterday.
Our school is no longer ______ is was 10 years ago, _______ it was not well equipped.