1 She left 30 minutes ago.

2 The ship arrived 30 minutes early.

3 Simmer the soup gently for 30 minutes.

4 They forged a lead in the first 30 minutes of the game.

5 Cook for 30 minutes over a gentle heat.

6 Add the remaining ingredients and simmer for 30 minutes.

7 He drowned after 30 minutes in the rough seas.

8 He waited some 30 minutes.

9 Simmer the meat for 30 minutes until tender.

10 The main computers went down for 30 minutes.

11 The journey should only take about 30 minutes[sentencedict.com], but in practice it usually takes more like an hour.

12 It'll take about 30 minutes to dry but I'd allow a safety margin of, say, another 10 minutes.

13 It takes about 30 minutes on foot, or 10 minutes by car.

14 Bake the pie for 30 minutes in a moderate oven.

15 In the exam, allow yourself a maximum of 30 minutes per question.

16 Bake the cake for 30 minutes until risen and firm to the touch .

17 After 30 minutes,[www.Sentencedict.com] a large ship hove into sight on the horizon.

18 We arrived at the restaurant 30 minutes late so, of course, our reservation had been cancelled.

19 The original version was cut by more than 30 minutes.

20 Build up slowly until you can jog for 30 minutes.

21 I plug in on the world news for 30 minutes each night through TV.

22 Each speaker was allotted 30 minutes.

23 I've been waiting for 30 minutes.

24 Incubation was performed at room temperature for 30 minutes.

25 Cover and let stand at room temperature 30 minutes.

26 Bake 30 minutes or until topping is lightly browned.

27 Simmer, uncovered, another 30 minutes.

28 She fulfilled her ambition to become the first woman to run the 10,000 metres in under 30 minutes.

29 Cover the fish loosely with foil and bake for 30 minutes.

30 Spread the mixture in the cake tin and bake for 30 minutes.