1.   And if we want to tighten and tone our bodies, we need to do toning exercises that work specific muscle groups.

2.   As you improve, increase the number of times you do each exercise.

3.   Before we do this exercise, let me tell you about a similar situation just two weeks ago.

4.   Children, many suffering from malnutrition, keep warm by doing exercises fully clothed.

5.   Doctors are always telling us that we should do more exercise.

6.   Doing exercise is the best way to shed surplus weight.

7.   Doing exercise, which requires extra fuel, will help burn off the body fat even quicker.

8.   Doing more exercise will improve your health.

9.   He ought to do more exercise.