Complete the sentences with a/an/ one

Exercise 6: Complete the sentences with a/an/ one.
1. It weights over
hundred kilos.
2. I only asked for
3. I wouldn't allow
pizza - I didn't want three of them.
child of mine to be treated in that way.
week to drive to Greece.
silver-coloured car.
sandwich isn't enough. I usually eat four or five.
state to another.
4. It only took us
5. I've always wanted to own
6.
7. Policies differ from
8. Less than three quarters of
9. All of the competitors completed
10. The best way to learn
hour later, she was home.
the race, with just
musical instrument is to find
exception.
enthusiastic teacher.