用括号内动词的正确形式填空：
1. I'm ________ (wash) my clothes now, so I'm busy.
2. Why not _________ (buy) a newspaper to read now?
3. There _________ (be) a birthday party this evening.
4. My father is always ________ (forget) to wake me up.
5. As students, we must practice _________ (speak) English every day.
