Question

Answer 1

39. If the house wasn't too expensive, I could buy it.
40. I spite of the extremely hot weather, they went jogging in the park.
41. Jane had no difficulty making herself understood.
42. The boring lesson made Bill fall asleep. 

Answer 2

39 If the car weren't expensive, we could buy it

40 In spite of the extremely hot weather, they went jogging in the park

41 Jane had no difficulty making herself understood

42 The boring lesson made Bill fall asleep