21.   Whether or not the proposal is enacted, it May well set off a national debate.

22.   The two climbers set off alone the rest of the expedition were expected to follow on later.

23.   From time to time, according to his theory, passing ships and planes set off the crystal, which confuses their instruments and sucks them into the ocean.

24.   The killings had set off widespread rioting in the occupied territories and in Jordan.

25.   Set off early, which was fortunate as I had trouble finding the right path.

26.   Duncan got behind the Golf and pushed it to prove it would move, then set off back up the slope to get the truck.

27.   But before she could set off the next day, the hospital telephoned with bad news.

28.   Without time to do more than yell in protest as he set off, Sarella launched herself after him and did her utmost to keep pace.

29.   It was exactly what she would have imagined an ex-racing driver to choose, but when he set off she was surprised at how carefully he drove.

30.   Lina waved cheerfully, as she set off back to the village of Santa Barbara.