Gwd28-01

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 West Indies.

A: of determining, in addition to how, when mammals colonized the islands of the West Indies

B: in the determination of how and when the islands of the West Indies were colonized by mammals

C: to determine how mammals colonized the islands of the West Indies and when they did

D: for determining when the islands of the West Indies were colonized by mammals and how they were

E: for determining how and when mammals colonized the islands of the West Indies

大家看看应该选那个？我在C和E间打转，觉得C中how,when分得太远，而E中又觉得for determining不太好。NN们帮着看看，谢谢

E

anwer C is wordy.

我选C,虽然觉得C也不是很好。理由主要是觉得provide sth 后面要用 to do, 不能用for doing.

求教

我也觉得应该用to do,不过好多人都选E的说

几个字典的例子，也许有帮助：

Both bone shapes and muscle structure provide clues to identifying the part of the carcass from which a cut is derived.

But the functions provide clues to the mechanisms.

Genetic research may provide clues to overweight.

Not only does the technique have potential in the perfume industry, but it may provide clues about how we perceive smells.

One of us can provide clues or ideas for another, but never answers.

我选C. 我认为此体的解题方向首先是用不定式,再考虑其他.至于他是不是WORDY, 得看作者的表达意向

觉得：c在最后如果加一个so，就不能算错了。最多说它罗嗦。E肯定是最好的。

provide sth.to sb.

provide sb. with sth.

provide sth. for some purposes...认为都是对的。

C的后半段的确没有E简洁

不过我在GOOGLE上都没有搜索到:

provide for ; provide clue for; clue for的结构

所以, 偶还是选C了....

en~~~eseraph, 你说的避免使用"they"是因为避免指代不清楚的问题么?

这里they应该是清楚的指代mammals~因为另外一个复述名词scientists所用的修饰成分都是一般现在式, 而这个they后面用的是一般过去式~