21.   The rebels waited until nightfall to renew their attack on the city.

22.   They were asked to wait until Kitty was eighteen and they agreed.

23.   Tidy up borders, but wait until spring before taking dead foliage off herbaceous plants, as it protects new shoots.

24.   Wait until the needle settles, then set the compass.

25.   Wait until the lights change to green.

26.   ...consumers who have waited until after the Christmas holiday to do that holiday shopping.

27.   He will probably wait until the last minute.

28.   New owners will have to wait until September before moving in.

29.   They waited until after dark to begin their escape.

30.   She had to wait until her certification as a nurse before she could start her new job.