40. The teacher wanted to make it knowing to the students that it’s time for them to practice what they have learned. 　

　　　 答案：31.去掉my　32.better→more good?33.how→what　34.去掉being　

39. Arming with a torch, he went to the clock tower to see what was the matter.

38. Under the circumstances, lives were at the stake.　

37. We have been accustomed to work hard at our study.　

36. Desert in the central part of the continent was the most tried part.　

35. We left to travel with a group of 45 wagons.　

34. The girl you considered being honest was caught cheating in the exam.　

33. It was not easy for us to decide how to take with us during the long lonely journey.　

32. He is better than bad. 　

31.I used to dig the garden every week,　but I lost my heart when the rain washed all the plants away.