英语文章填空.David is a big boy.He likes meat very much.He ___1___

英语文章填空.
David is a big boy.He likes meat very much.He ___1___a lot of food for each meal,so he is quite heavy and always feels sleepy in class.He is not good ___2___ his subjects,and he feels __3____ after exams each time.“I can’t get heavier.I have to lose some weight (减肥).I must be active”,he thinks.Then he ___4___up early in the morning and keeps running ___5____day,and ___6___ each meal he eats only fruit and ___7____,no meat any more.Now,he gets __8__ and stronger.And he doesn’t fall asleep in ___9___any more.He is so happy.And he hopes he can keep fit.