1. she wishes she didn't sick today.
2, she wishes she had a modern calculator
3. it took her 15 minutes to write the letter.
4. it takes Mr Vy 30 minutes to prepare for his work.
5. i spent a whole night writing the report.
9. Quan always goes to school on foot.
11. concentrating on my work this morning is a bit difficult.
12. i am not used to get up early in the morning.