B has been discovered
金子早在19世纪的加里福利亚就已经被发现了.
对现在有影响用现在完成时是对的么对的
Gold ( )in California in nineteenth centry.
Gold ( )in California in nineteenth centry.
A.was discovered B.has been discovered C was discover D.was to be discovered
A.was discovered B.has been discovered C was discover D.was to be discovered
英语人气：184 ℃时间：2020-04-19 14:48:49
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