33. He now wishes he had taken the doctor's advice.

34. Peter apologized to the teacher for not doing the homework.

35. Had she not been seriously lazy, she would have passed the exam.

36. The famous architect is known to design the house.

37. She not only wrote the text but also selected the illustration as well.

38. Despite spending about one-third of our lives sleeping, we know relatively little about sleep.

39. I didn't arrive early enough to see her off.

40. Having graduated from university, he went abroad to work.

33. He now wishes he had taken the doctor's advice.

34. Peter apologised to his teacher for not doing th homework.

35. Had she not been lazy, she would have passed the exam.

36. The famous architect designed the house is known by everyone.

37. She not only wrote the text but also selected the illustration.

38. We spend about one-third of our lives sleeping despite our relatively little knowledge about sleep.

39. I did not arrive early enough to see her off.

40. Having graduated from university, he went abroad to work.