PREP SC语法笔记的23题正确答案应该为E

paulfrank11

4. Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.

A. their horny jaws function for teeth

B. its horny jaws function for teeth

C. its horny jaws function as do teeth

D the horny jaws function as teeth do

E the horny jaws function as teeth

谁知道第四题的答案应该是什么？我觉得选E

monetcafe

以下是引用paulfrank11在2006-12-19 10:32:00的发言：

4. Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.

A. their horny jaws function for teeth

B. its horny jaws function for teeth

C. its horny jaws function as do teeth

D the horny jaws function as teeth do

E the horny jaws function as teeth

谁知道第四题的答案应该是什么？我觉得选E

偶觉得是D