英语翻译要用过去完成时!1.我妈妈刚刚买了一些水果.2.他已经去澳大利亚5年了.3.你们已经完成了所有的作业了吗?4.李

1.My Mother had just bought some fruits.
2.He had gone to Australia for 5 years.
3.Had you finished all the houmework yet?
4.Mr.Li had never traveled by air before.
5.They had already gone to Hainan for a holiday.
6.I had gone to Guilin twice.