请将英语短文补全!救急!____i understand that it is important to do my h

请将英语短文补全!
救急!____i understand that it is important to do my homework and ___ it in on time,sometimes i still don't want to do so much homework.i almost have no free time for my hobbies,___as playing voleyball and ping-pong.the worst thing is that i even have homework on weekends and holidays are ,the ___homework i get.i really feel bad about that.