11.   It is important for manufacturers to identify potential problems at the design stage.

12.   Joan has a lot of financial problems at the moment.

13.   No parking problems at these restaurants with private car parks.

14.   Peter Novick dismisses the Freudian theory of repression of trauma leading to problems at a later date.

15.   Problems at the office were making Todd very prickly.

16.   Projects which tackle medical problems at their root and provide long-term solutions.

17.   Rational techniques were introduced to try to solve what were perceived to be problems at the time.

18.   She is being treated for psychological problems at a mental hospital in Oxford.

19.   She was very dismissive when I tried to tell her about my problems at work.

20.   Take action immediately to rectify the problem at source.