It is said that the old coins under the earth for about 100years by the time they were discovered.A．had buriedB．had been buriedC．buriedD．were buried 题目和参考答案——青夏教育精英家教网—

题目内容

It is said that the old coins ______ under the earth for about 100years by the time they were discovered.

A．had buried

B．had been buried

C．buried

D．were buried

考查时态。by the time+过去的时间，主句用过去完成时态，根据by the time they were discovered.，应选B。句意：据说这些古老的硬币被发现的时候，已经被埋在地下100年了。

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