120. 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
沒有附解答...請大家一起討論
BC單複數不對
A我覺得語義錯誤,horny haws不是為了牙齒作用(for teeth),而是如同牙齒的作用(as teeth do)
E的話沒有動詞容易產生ambiguous
所以我覺得答案是D
open to discuss~