Completar frases Today 3 L49 vocVersión en línea Complete the sentences por Oxana Ten 1 push-ups heart stretching flexible bone martial art aerobic exercises build muscles 1 ) I enjoy doing in the morning to stay healthy . 2 ) Stretching every day helps me feel more and relaxed . 3 ) My doctor told me that is important for my back's health . 4 ) Running helps keep my strong and healthy . 5 ) I want to learn a to improve my fitness level . 6 ) Doing can help me strengthen my muscles . 7 ) Milk is good for your health because it has calcium . 8 ) Rowing is a great exercise to and burn calories .