Question

China's sport stars Yao Ming and Liu Xiang ________ Good will Ambassadors（亲善大使）for Shanghai.

1. A.
   has been named
2. B.
   have been named
3. C.
   has named
4. D.
   have named

Answer 1

B
解析：
现在完成时的被动语态：主语+have / has been+过去分词，Yao Ming and Liu Xiang两个人做主语，故用have。