题目内容：

根据内容提示完成句子（共5小题；每小题1分，满分5分。不少于3个词，不超过5个词。）

1.To the north of the city, most of the 10,000 miners __________(被营救)the coal mines there.

2.__________(埋头工作) for so many years，the scientist succeeded at last.

3.I knew it would help us _____________(实现我们的梦想)making black and white people equal. 

4.She started singing to the baby and was__________(报以微笑). 

5.When he heard about the bad news he _________(大哭起来).