According to the school rules, if a student _________ happen to damage something by accident,he/she should report it to a teacher or the office immediately.
---Are you satisfied with the result ? ---Not at all. ______.
---What’s the matter with John? He has been sitting there for hours. ---A postcard from his father ______ an attack of home-sickness in him.
With the audience ______ at her, the little girl felt nervous on the stage.
China’s education reforms aim to better develop students’ ability to think ______.
---She looks very happy. She ______ have passed the exam. ---I guess so. It’s not difficult after all.