111.  This loss will be a tough one from which to recover.

112.  This was a tough one for Red Sox fans to watch.

113.  This was a tough one for the New York City Fire Department, maybe tougher than some of the others.

114.  This was a tough one tonight.

115.  This team is not a tough one, either mentally or physically, but it could get better in both areas.

116.  This can be a tough one, especially for young people whose scars are impossible to hide.

117.  Though the company has been nimble about jumping into hot new markets, the market for helmets is generally a tough one.

118.  This year has been a tough one for charities and other nonprofit organizations, from arts enterprises to antipoverty groups to universities.

119.  Tough one to call.