196. It is possible that Native Americans originally have migrated to the Western Hemisphere over a bridge of land that once existed between Siberia and
(A) have migrated to the
(B) were migrating to the
(C) migrated over a bridge of land to the
(D)
migrated to the
bridge of land that once existed
(E) were migrating to the
a bridge of land existing once
选项E里的exising OG的解释说imprecise,这里为什么用that 从句而不用分词短语,怎么就imprecise了,木看出来?
还有D里的that是修饰 land呢还是bridge 呢?
That 修饰 a bridge of land. 句子要读懂。the Western Hemisphere 不可能在Siberia 和Alaska之间。 我开始做题时也为了赶时间不读其他部分。但是其他部分有很多重要的hint,一定要读懂。
用 ing分词是在形容长久的情况。 once 不是长久,而是曾经一次。
A mountains are in the west, standing between X and Y. 一直就在,而且现在还在。
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