问题补充:
, so he is afraid of dogs .
A. Having been bitten twice
B. Bitten twice
C. After he has been bitten twice
D. He has been bitten twice
答案:
A. Having been bitten twice
B. Bitten twice
C. After he has been bitten twice
(答案→)D. He has been bitten twice
解析:考察动词的非谓语形式辨析
句意为:他被狗咬过两次,所以很怕狗
从语法上看,该句式一个原因状语从句。前句应是一个完整的单句,故选D
考点:考察动词的非谓语形式辨析