答案：do
ought to do sth.应该做某事
不明白的再问哟,请及时采纳,多谢!We all feel (please) to see the changes in our life 括号里的单词要改成什么pleased be pleased to do sth. 高兴做某事Joyce suggested（vote）for Arthur括号里的单词要改成什么voting suggest doing sth. 建议做某事Remember to take （note）in classnotes take notes 记笔记