21.   He quickly discovered that his new boss had trouble in communicating.

22.   He was having trouble controlling the heavy truck on the slippery road surface.

23.   He was having trouble meeting the interest payments.

24.   His fingers were numb and he had trouble fastening the buttons.

25.   His speech was slurred and he was having trouble standing straight.

26.   However, having survived our encounter with phase space, we should have no trouble with a mere four dimensions!

27.   I am having trouble with my fruit cakes!

28.   I had been having trouble with arthritis for years, and nine years ago had a hip replacement.

29.   I had no trouble picking holes in her theory.

30.   I had some trouble with the car this morning.