1. Karen failed to persuade the landlord to change the locks.
SUCCEED
Karen _ _ _ _ _ the landlord to change the locks (5 words)
2. His doctor advised him to reduce the amount of caffeine he consumed.
DOWN
He was advised _ _ _ _ the amount of caffeine he consumed. (4 words)
3. Perhaps they went the wrong way and got lost.
MAY
They _ _ _ the wrong way and got lost. (3 words)
4. Her employer will not tolerate her tardiness any longer.
PUT
Her employer will not _ _ _ her tardiness any longer. (3 words)
5. All the employees received a pay cheque apart from Charles.
WHO
Charles was the _ _ _ _ _ receive a pay cheque (5 words)
6. The candidate defenitely will not win the election
CHANCE
The candidate has got _ _ _ _ the election (4 words)
7. I got the job because I knew the manager.
WOULD
If i had not known the manager, I _ _ _ _ the job (4 words)
8. He said he was sorry he had yelled at his sister.
YELLING
He _ _ _ at his sister (3 words)
9. She got the part even though she did not have much acting experience.
OF
In _ _ _ _ much acting experience, she got the part (4 words)
10. He studied history because he wanted to be a teacher.
VIEW
He studied history _ _ _ _ _ a teacher (5 words)

1. Karen did not succeed in persuading the landlord to change the locks. (5 words) — Succeed in doing something означает «преуспеть в чём-либо», «суметь что-либо сделать».

2. He was advised to cut down on the amount of caffeine he consumed. (4 words) — Cut down on означает «сократить потребление чего-либо».

3. They may have gone the wrong way and got lost. (3 words) — May have + V3 используется для выражения предположения о прошлом.

4. Her employer will not put up with her tardiness any longer. (3 words) — Put up with означает «терпеть», «мириться с чем-либо».

5. Charles was the only employee who did not receive a pay cheque. (5 words) — The only employee who did not означает «единственный сотрудник, который не...».

6. The candidate has got no chance of winning the election. (4 words) — Have no chance of doing something означает «не иметь никаких шансов что-либо сделать».

7. If I had not known the manager, I would not have got the job. (4 words) — Это Third Conditional (третий тип условных предложений), который используется для описания нереальных ситуаций в прошлом.

8. He apologised for yelling at his sister. (3 words) — Apologise for doing something означает «извиняться за какое-либо действие».

9. In spite of not having much acting experience, she got the part. (4 words) — In spite of означает «несмотря на». После этого выражения глагол употребляется с окончанием -ing.

10. He studied history with a view to becoming a teacher. (5 words) — With a view to doing something означает «с целью что-либо сделать». После to в этом выражении используется герундий (-ing), а не инфинитив.

Все десять ответов соответствуют указанному количеству слов и сохраняют смысл исходных предложений.