41. It will be several days before the Spring Festival comes on. No wonder people are busy doing the shopping and the cleaning.
42. There used to be a thick wood in the village, but now it has turned into a deserted sand field.
43. How did it come about that your bike was lost again?
44. As is fairly often, he is telling lies.He is always telling lies, as is often the case.
45. He set out to play video games the moment he got home, which took up most of his time when he should have studied.