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

57. 金属有许多有用的特性 , 其中强度是最重要的。

23.Jack worked late into the night, _he had not finished even half of the job.

42.The young man was not found to be illiterate until_.

38.All caregivers believe that they_.

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

24.There is no doubt _ he is a good employee, for he has all the qualities that the company needs.

63. 不管发生什么 , 他们都将完成这个试验。

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

20._suggestions you make, he will turn a deaf ear to them.

28.We had the machine_just now.

45.Why did the young man like to go to Howard Johnson’s ？