31. ____(not, do) very well, the work had to be done all over again.

30. ____(give) such a good chance, how could she let it slip away?

29. ____(show) the lab, we were taken to the school library.

28. ____(not, receive) an answer, he decided to write another letter to them.

27. ____(fail) twice, he didn't want to try again.

26. ____(work) among the peasants for many years, he knew them very well.

25. ____(finish) their work, they went home.

24. ____(be) ill for a long time, she was very weak.

23. ____(have) his dinner, he rushed out.

22. ____(water) the flower, he began to cut the grass.