Push-ups are a kind of e____ that you can do to make your body s___.

题目

Push-ups are a kind of e____ that you can do to make your body s___.
In order to do a push-up correctly,fisrt lie down on the floor,face-down.K___ you legs together.As you lie on the floor,put your hands on the floor next to your shoulders.Your hands should lie on the f_______.

答案