Complete each sentence with the correct dorm of the word in capital letters. In some cases you will have to make a negative form by using the prefix dis-, in-, un-

8. BASE
My grandfather only had a very ........ education.
The organisation is run on a voluntary .........

9. CALCULATE
Half these ......... are wrong!
My son wants a pocket ......... for his birthday.
He was a very cool, ......... kind of person.

10. COLLECT
Stamp ........ can be a very expensive hobby.
Here's a special offer to all .......... of foreign coins!
The ........ was very successful. It raised £3,500.

11. COMPARE
I'm just a beginner in............with her.
Crimes of violence were..............rare until a few years ago.
What happened two years ago is not really................to the situation now.

12. COMPETE
Would all..............please make their wayto the start?
We're selling these toys at a very...............price.
If I win this................, I'll get a new bicycle.

13. CONFIRM
She received a letter of ........... from the hotel.
We've received an ........ report of an explosion outside the President's house.

14. CONTINUE
His latest book is a ........of his previous one.
The train service was................because it wasn't used by many people.