1: Scientists claim that the discovery of the first authenticated mammal bones in amber could provide important clues of determining, in addition to how, when mammals colonized the islands of the
A: of determining, in addition to how, when mammals colonized the islands of the
B: in the determination of how and when the islands of the
C: to determine how mammals colonized the islands of the
D: for determining when the islands of the
E: for determining how and when mammals colonized the islands of the
UP UP
从整个句子来看mammal bones提供了线索,后面应该是mammals(如何和何时)统治....
所以选择E.
C中to应该接sth.
例:give a clue to sth. or provide a clue to sth.
偶明白了 C有个重要错误就是后面那个THEY 指代不清楚 可能指前面的scientise.产生歧义
可是E中的provide sth for 对吗?
C的一个明显错误是 when they did后面少一个“SO”
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