while the nurse was doing what was _____ the young man waited背景是the old man was died.求该题选择A.possible B.necessary c.important d.difficult

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while the nurse was doing what was _____ the young man waited背景是the old man was died.求该题选择A.possible B.necessary c.important d.difficult
while the nurse was doing what was _____ the young man waited
背景是the old man was died.求该题选择
A.possible B.necessary c.important d.difficult

while the nurse was doing what was _____ the young man waited背景是the old man was died.求该题选择A.possible B.necessary c.important d.difficult
B.necessary

应该是B吧

四个选项的意思分别是 可能的 必要的 重要的 困难的
题目意思是护士做着。。。的事的时候年轻人在等着。
通过背景大概猜测是帮助老人料理后事之类的,这样看来,只有B 必要的 这个选项比较合适。