11.   Granted, lots of pro golfers develop back troubles.

12.   He was working through family problems when he developed heart trouble.

13.   In fact, it waited just long enough to develop engine trouble.

14.   India maintains that one of the jet pilots accidentally strayed across the line after developing engine trouble, while the other pilot was just trying to help his comrade.

15.   Li was interrogated over night and reportedly said that the submarine had been gathering information off the coast when it developed engine trouble and ran aground.

16.   Shortly after moving in, John and Pam both developed sinus troubles.

17.   The moderator, officials said, developed heart trouble.

18.   The long-range bomber developed mechanical trouble and declared an emergency shortly after taking off from Diego Garcia, a British-held island with a large air base.

19.   The plane in which Lt. Cmdr. Johnson was an observer developed mechanical troubles and was forced to turn back alone, presenting a favorable target to the enemy fighters. . . .

20.   Their plane develops engine trouble.