问题详情：
1．In his speech, he （感谢）everyone all their hard work.
2．I （欣慰，感激）see they had all arrived safely.
3．There was a fire in the building, but （幸亏）no one was hurt.
4．I am writing to （表达我对你由衷的感谢)in this letter.
【回答】
1．；
2．was thankful to；
3．thankfully；
4．express my heartfelt thanks to you
知识点：翻译
题型：未分类
