根据英语首字母或所给的汉语提示写出短文中所缺单词的正确形式。（共5小题，计5分）
Boys and girls,
May I have your attention ,please?I have something 小题1:_______(重要的）to tell you.Tomorrow is Beach Clean-Up Day.Our class will 小题2:t_________ part in the activity.The clean-up starts at 9:30a.m.and 小题3:f_________ in the afternoon.
We will meet on the beach at 9:00a.m.You can go there by bus.Please be on time.We will have lunch on the beach after our morning work.Then we have to小题4:_____(把...分类） the garbage.There will be a lot of hard work to do tomorrow,so make sure you go to bed early tonight.See you all on the 小题5:b______.
That’s all.Thank you.