请在下列选项中选出适合的单词或短语填空,将单词或短语前的序号填入空中(注意,不要填单词,只需要填1,2,3,4即可。) The principal is ______ disappointed with ______ of the children. From what she has gathered, some of the teaching staff ______ their pupils. She has just announced that strict work regulations have been made and that ______ both Chinese and overseas teachers. 1. apply to 2. is applied to 3. they apply to 4. they are applied to 5. somewhat 6. neglect 7. have neglected 8. an performance 9. the performance 10performance