Here are the correct forms of the given words:

1. Deb’s very warm and **caring** person. (CARE)
2. Third time lucky! After two **successful** attempts, Mark’s finally passed his driving test. (SUCCESS)
3. The number of **burglaries** which remain unsolved is still high. (BURGLE)
4. The situation is so **chaotic** in some cities now that it is difficult to see any solution. (CHAOS)
5. The book is full of scientific **techniques**. (TECHNIQUE)
6. British universities are **undeniably** good, but the pool of top scientific talent trickling from the amounts to 0.01% of the working population. (DENY)
7. The meeting has been **provisionally** arranged for 3.00 p.m. next Friday. (PROVIDE)
8. The **breath** has caused many so-called man-made disasters. (BREATH)
9. Tom spoke **sentences** because he was so excited. (SENTENCE)
10. It’s very rude to interrupt someone in **conversation**. (SENTENCE)
11. The chairman expressed doubts about the **suitability** of showing the film on children’s television. (SUIT)
12. The heroine had a **passionate** love affair with the butcher. (PASSION)
13. I’ll resign if you continue to **disregard** everything I say. (REGARD)
14. I have decided to take up **photography** as a hobby. (PHOTOGRAPH)
15. The team turned up on the wrong day because of a **misunderstanding**. (UNDERSTAND)