37.He was very happy to hear from his old friend. 他很高兴收到老朋友的来信。

52. Neither John ______ his father was able to wake up early enough to catch the morning train.
约翰和他父亲都没能早点起来赶上早班火车。

51. Eggs, though rich in nourishments, have ______ of fat.
尽管鸡蛋营养丰富,但它含有大量的脂肪。

50. The young lady coming over to us ______ our English teacher; the way she walks tells us that!
那个正朝我们走来的年轻女子肯定是我们的英语老师;她走路的样子就告诉我们了。

49. Mike is better than Peter ______ swimming. Mike比Peter更擅长游泳。

48. I don’t know the park, but it’s ______ to be quite beautiful.
我不了解这公园,但据说很美。

47. When Lily came home at 5 p.m. yesterday, her mother ______ dinner in the kitchen.
莉莉昨天五点钟回家时,她妈妈正在厨房里做晚饭。

46. I like the teacher ____ classes are very interesting and creative.
我喜欢那位上课既有趣又有创意的老师。

45. I didn’t expect you to turn ____ at the meeting yesterday.
昨天我没想到你会出现在会议上。

44. We worked hard and completed the task ____. 我们努力工作并且提前完成了任务。

43. Once environmental damage ____, it takes many years for the system to recover.
环境一旦被破坏,需要很多年才能恢复过来。