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16. Who was on/in charge of building the Big Ben?

17. Nobody can show good results under/in pressure.

18. While/As soon as he saw the man, he immediately recognized him.

19. After the university she made a career by/in law.

20. In/At the age of 5 Mozart could play the musical instrument brilliantly.

21. Before/When Leonardo Da Vinci had a bright idea, he wrote it down in his notebook.

22. Mari Curie died by/of radioactive poisoning.

23. This job brings him about/in enough money to get by.

24. In/At the end of his report he thanked everyone for the attention.

25. While/As soon as he was working, he often glanced at the clock.

16. Who was in charge of building the Big Ben?17. Nobody can show good results under pressure.18. As soon as he saw the man, he immediately recognized him.19. After the university she made a career in law.20. At the age of 5 Mozart could play the musical instrument brilliantly.21. When Leonardo Da Vinci had a bright idea, he wrote it down in his notebook.22. Mari Curie died of radioactive poisoning.23. This job brings him in enough money to get by.24. At the end of his report he thanked everyone for the attention.25. While he was working, he often glanced at the clock.