21.   She does a lot of work for charity.

22.   The best way to lose weight is to eat less and do lots of exercise.

23.   The hospital is doing a lot of research into new ways of treating asthma.

24.   The players have to do a lot of fitness training.

25.   They did a lot of research, and found what they felt were perfect housing solutions.

26.   They do a lot of business with Italian companies.

27.   They do lots of fun outdoor activities like canoeing, hiking and camping.

28.   They will have to do a lot of physical fitness training.

29.   We did a lot of stupid things in high school.