1. We are made to learn hard by the teacher.
2. It takes us ten minnutes to have breakfast every day.
3. How old are you?
4. What was your age last year?
5. What is the price of your book?
6. What is your brother’s age?
7. I spend 2 hours flying to Ho Chi Minh city.
8. We haven’t seen Dick for 2 days.
9. Why don’t we go swimming?
10. I have finished my work for two hours.
11. What is the price of these pens?