1.Mr. Smith advised us to withdraw ________.
A) so that to get not involved
B) so as to get not involved
C) so as not to get involved
D) so that not to get involved
2.________ in a seemingly endless war, the general was forced to evaluate the situation again.
A) Since the loss of 50,000 soldiers
B) Because of 50,000 soldiers having lost
C) Having lost over 50,000 soldiers
D) 50,000 soldiers were lost
3.Knowing something as a whole is far from knowing all its ________.
A) instance
B) character
C) items
D) details
4.________ for your laziness, you could have finished the assignment by now.
A) Had it not been
B) It were not
C) Weren’t it
D) Had not it been

1. C 2. C 3. D4. A

老师，请将答案详解一下，谢谢！

答案及解析：
1.原文译文: 史密斯先生建议我们推出，不让我们牵扯进去。
  解析：so that后面要加句子，所以A,D不对，动词不定时式的否定形式是在to前面加not，
  所以正确答案应该选择C。
2.原文译文: 在这场看起来没有尽头的战争当中已经有50，000士兵丧生，将军被迫重新
  审视局势。
  解析：C是用独立主格结构代替从句，使句子更简练。所以正确答案应该选择C。
3.原文译文: 总体上了解某件事情远远不等于了解了所有的细节。
  解析：instance实例, 建议, character)特性, 性质, 特征，item项目, 条款,detail细节, 详情。
  所以正确答案应该选择D。
4.原文译文:要不是你懒，现在你早就已经做完作业了。
  解析：在虚拟语气的条件句中（If）如果省略if，句子要进行部分倒装，即把助动词或情态
  动词提前，从句是对过去情况的虚拟，所以应该用过去完成时。所以正确答案应该选择A。