Mary was given a huge pay rise as a       for her great efforts in improving sales.

. You must be there within an hour. There should be no _______ in sending the information. 

 You are really very kind. I’ll never forget the      you have done to me.

After two hours of hard fighting,the northern army won the ________.

What ______ will it ______ whether you are a boy or a girl ? As long as you set your mind to it, nothing can be difficult.