题目内容：

按所给的汉语，用英语完成下列句子。

1.不管世事如何艰难。请别灰心。

No matter how hard your situation is, you had better _______________________.

2.到目前为止，很多老师对智能阅卷系统显示出了极大的兴趣。

So far, many teachers ______________________________ Intelligent Marking System.

3.那条棉衬衫经过清洗和熨烫之后看上去像新的一样。

That cotton shirt looks _____________ after it is washed and ironed.

4.那时，人类对于外太空一无所知。

Outer space ____________________________ at that time.

5.善学者能将书上读到的东西与自身的经历联系起来。

A good learner can ____________________________ his own experience.

6.她发现很难与一个伤害过她的人好好相处。

She found ____________________________________ the one who had once hurt her.