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.
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
看了讨论,还是有些不懂 1.provide的用法到底是什么,我查到的就是provide sth for sb,但是有没有provide sth for doing的?? 2.都说C中错是因为they的指代歧义,但是两句并列的句子,后一句的主语代词优先指代前一句的主语么????