Read the following paragraph and add necessary transitional words. The simplest way of keeping fits is by exercising regularly. The exercise must be vigorous. Vigorous exercise keeps our muscles strong and supple. Exercise can guarantee ourselves against all illnesses. Exercise helps building up stamina, enabling us to keep our reflexes sharp and limbs flexible and strong. Exercising alone is not enough, the food and drinks that we take are also important. Fatty foods and alcohol are two that we have to be careful about. We have to be careful not to over exercise until we collapse from fatigue.