31.   I had trouble keeping up with him.

32.   I had trouble understanding the French, so I got the English version of the book from the library and read it.

33.   I have no trouble filling my time.

34.   I was having serious trouble knowing where to begin.

35.   If you have engine trouble, park as far to the side of the road as possible.

36.   If you have trouble finding a place for your event, ask the caterer about locales or venues.

37.   If you have trouble obtaining a reservation at a particular kennel, you can consider it a good sign.

38.   If you used the same tape later and had no trouble with the picture, the problem is probably in the VCR.

39.   It is not the first time that NASA has had trouble with the upper stage.

40.   It is perfectly rational for individual banks to want to foreclose early on companies having trouble repaying their loans.