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题库 / OG2019-SC-727
Because many of Australia’s marsupials, such as the koala, are cute and cuddly, as well as being biologically different than North American marsupials, they have attracted a lot of attention after their discovery in the 1700s.
being biologically different than North American marsupials, they have attracted a lot of attention after
being biologically different from North American marsupials, they attracted a lot of attention since
biologically different than North American marsupials, they attracted a lot of attention since
biologically different than North American marsupials, they have attracted a lot of attention after
biologically different from North American marsupials, they have attracted a lot of attention since
题目分析：
different要和from搭配，表示，和...不同；不能和than搭配。
其次，since作为时间状语的标志时，表示“自从...” ，因此其修饰的主句用完成时态是更合理一些的。
选项分析：
略
1. 加being就意味着和are cute and cuddly并列，但语义上显然是不并列的。
2. since用have done，不加have的话就把since变成after
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