问题补充:
Taiwan is the Treasure Island of China and it is a part of China.
A. regard as
B. regarded as
C. regard to
D. regarded to
答案:
A. regard as
(答案→)B. regarded as
C. regard to
D. regarded to
解析:regard as把……认作;regard to关于,向……问好。句意:台湾被当做祖国的宝岛,它是中国的一部分。结合语境可知本句主语是动作的对象,故用被动语态,选B。