Question

________ deep down in the earth for thousands of years, the dead forest has rotted away and become coal．

A．Having buried	B．Being buried
C．Buried	D．To be buried

Answer 1

C

试题分析：句意：被埋在了泥土中数万年，死亡的森林已经腐烂变成了煤。动作bury与其逻辑主语the dead forest是被动关系，故用过去分词作原因状语，选C。