1. Christina said that what she should do to remember all math formulars.
2. My father said that the freezing point of water is $0^{0}$C.
3. The doctor asked my mother if she had suffered from lower back pain.
4. Sandra said that she hadn't slept the night before.
5. Mrs. Miller asked her daughter why she looked so boring.
6. Christ said that he couldn't focus on his study.
7. She asked if I went to the gym often.
8. Anna said that she would have a math test the next week.
9. Kahn asked me where I was going to spend the summer holiday.
