根据下列句子及所给汉语注释，在”答题纸”相应题号后空白处写出空缺处各单词的正确形式。（每空只写一个词）
小题1:
To our great surprise, he burst into ________(大笑) all of a sudden.
小题2:
The books students are using in this school have been _______ （更新）recently.
小题3:
The old worker was praised for bearing _______(艰难困苦) without complaint for so many years.
小题4:
We’ll have to arrive in time for the job on their ______(离开).
小题5:
We can see a  _________（逐步的）improvement in his work.. He needs more time in fact.
小题6:
The fact was that no one ________(预见)the rapid increase in unemployment last year.
小题7:
The ___________(改革)and open policy has brought us Chinese people a rich and colorful life.
小题8:
The boy finally reached his destination at _______(黄昏)，extremely worn out.
小题9:
The woman never _____________(后悔)taking so much trouble to be admitted into the university.
小题10:
The young man has promised to ______（献）his life to literature while his parents would like him to major in science.