1. C.You decide the fairest thing is not to celebrate with the family at all; it's less trouble.
    c.你得出结论，不和家人一起过节最公平，这样麻烦较少。

2. To celebrate the tenth anniversary of the People´s Republic (1959), the government determined in 1958 that Beijing should undertake ten major building projects and complete them in ten months.
    为了庆祝中华人民共和国建国十周年（一九五九年），一九五八年，中国政府决定十个月内在北京完成十项主要建筑工程。

3. How did you celebrate May Day this year?
    你们今年是怎样庆祝五一节的？

4. He developed 150 or so X-rays, his usual output, to celebrate.
    他以平日的工作量，冲洗大约150张X光胶片来庆祝这个日子。

5. Shortly after it was launched, the pie committee went to a local inn to celebrate.
    盘子下水后不久，馅饼委员会成员们来到当地一家小酒店庆贺。

6. Let´s sing some songs to celebrate this joyful occasion.
    让我们唱几支歌来庆祝这个令人欢乐的节日。