Whenever I made mistakes, the teacher pointed them out with ______. 

Some famous singers live on the________from their record sales.

The committee accepted his proposal that a conference be held _______ to deal with the issues arising in the course.

 Though you've got a tight schedule these days, I should be ________ if you could spare time to attend our meeting today.

I know he hasn’t finished his homework, but ______, he has done his best.