根据句意及汉语提示在横线处填上恰当的单词，使句子意思完整，语法正确。

1.  It doesn't _______(有关系)if I miss my train,  because there's another one later.

2.  Jenny is poor in English．She can hardly make a_______(完整的；完全的)sentence.

3.  I didn't _______(认识到)how late it was until my mother got angry with me.

4.  All the runners are trying to run as_______(快地)as they can to win the race.

5.  My little sister is_______(害怕的)of the dark, and she never goes out at night.

6.  I joined the art club last _______(学期).  1 learnt a lot and now I can draw well.

7.  There are many chances and________(挑战)in modern society. We should face them 

     bravely.

8.  We bought an old car, and it was the_______(问题、疑难等的解决)to all our problems.

多器官功能障碍患者，第一个受累的器官常为（）

A.心

B.肺

C.肾

D.肝

E.脑