35.Jenny was looking for a seat when, luckily, a man_and left.

25._more time, she would certainly have done it much better.

37.Who will most probably take care of the middle-aged Americans when they need care themselves ？

63. 不管发生什么 , 他们都将完成这个试验。

61. 中国的丝绸产品比世界上任何其他国家都要多。

22.When Mr.Smith got there, he found that about_of his friends had arrived.

18._before we leave the day after tomorrow, we should have a wonderful dinner party.

30.California relies heavily on income from fruit crops, _.

62. 不论她如何说 , 我也不相信这个消息。

57. 金属有许多有用的特性 , 其中强度是最重要的。

17.I was very tired.Otherwise, I_ the theatre with you for the new film.

31.There is not much news in today’s paper_？