I. 根据首字母或汉语提示写出单词

1. Why don’t you tell US what r_____ happened?

2. ---Would you like some bread or cookies?

---N_______, thanks. I don't have any food before going to bed.

3. I left my g textbook at home yesterday.

4. People should be taken a p_______ examination every year.

5. What _____(科目) are you studying at school?