32.Things might have been much worse if the mother ()on her right to keep the baby.

41.She has to work hard to ()the lessons she missed due to her illness.

40.Stepping carelessly off the pavement， ().

39.()great was the destruction that the earth-stricken region took decades to recover.

38.Rather than ()everything to the last minute， he always prefers to start early.

37.It makes ()to evaluate the risks before taking any action.

36.Researchers have spent a decade collecting data ()the study was based.

35.Sam used to ()late with his roommates and play computer games.

34.Details of the underground trade were ()by the local newspaper.

33.Every policeman and fireman ()on the alert， especially during public holidays.

32.He ()on this essay for half an hour but he has written only about a hundred words.