1. I'm sorry. I have too much _________ (作业) to do this weekend.
2. Maria won first prize in yesterday's singing _________ (竞赛).
3. I need two _________ (薄片) of bread first.
4. For me, a good _________ (朋友) likes to do the same things as me.
5. He has to finish the _________ (地理) project in the evening.