1．You need to workout．
2．I really need to lose some weight．
3. I've got to start working out．
4．I really think a little exercise would do you good.
5. Why don't you attend an aerobic class?
6. It might be a good idea to join a fitness center.
7．Walking up and down the stairs would beat any exercise machine.
8. I love this game．
9．Combining exercise with the diet may be the most effective way to lose weight.
10. She runs everyday in order to lose weight.