第一题：His fellow workers saw him fall down and blood came out from the open此处空格.A：wound,B：hurt,C：injury.D：damage,老师说,选C,但我

第一题：His fellow workers saw him fall down and blood came out from the open此处空格.A：wound,B：hurt,C：injury.D：damage,老师说,选C,但我觉得就是A .
第二题：Suppose you lost a lot of blood,what would a doctor do?此处空格the blood as quickly as possible.空格处有四个选项A：Add B：Alter C：replace D：Return.老师说选C,因为C项有补偿的意思,但我怎么看怎么觉得都应该选A,因为我觉得replace就是取代的意思,我觉得和血液搭配不了,add和血液搭配似乎很合理
求求各位大神帮忙看一看这两题到底应该选择什么呢,麻烦讲解可以说细致一点么,感激不尽