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Being a United States citizen since 1988 and born in Calcutta in 1940. author Bharati Mukherjee has lived in England and Canada, and first came to the United States in 1961 to study at the Iowa Writers' Workshop.

• Being a United States citizen since 1988 and born in Calcutta in 1940, author Bharati Mukherjee has


• Having been a United States citizen since 1988, she was born in Calcutta in 1940; author Bharati Mukherjee


• Born in Calcutta in 1940, author Bharati Mukherjee became a United States citizen in 1988; she has


• Being born in Calcutta in 1940 and having been a United States citizen since 1988, author Bharati Mukherjee


• Having been born in Calcutta in 1940 and being a United States citizen since 1988, author Bharati Mukherjee
  

题目没有什么问题，主要想请教一下，Having been born/Being born/Born;以及Being a.../Having been a...分别是什么用法，还原后各是什么？

最好举例说明各种省略时态的用法……

请各位NN解答一下，谢谢

自顶

这个问题是不是太白痴了……