46. all by oneself 独立,单独
45. out of从……向外
44. on time 按时
43. at the weekend 在周末
42. had better(not) do sth. 最好(不要)干某事
41. take exercise运动
40. look over 检查
39. instead of 代替
38. wake up 醒来,叫醒
37. again and again再三地,反复地