补充材料的疑题！

littlebluesk

101,
Several senior officals spoke to the press on condition (that they not be named) in the story.
c:that their names are not used
为什么不选c而选a呢？

103，
One of Ronald Reagan's first acts as President was to rescind President Carter's directive that any chemical banned on medical grounds in the united states be prohibited from sale to other countries.)
c: prohibiting the sale to other contries of any chemical banned on medical grounds in the United States.

选c,可是A为什么不对呢？

108 With its plan to develop seven and a half acres of shore land, Cleveland is but one of a large number of communities on the Great Lakes that (is looking to its waterfront as a way to improve the quality of urban life and attract) new businesses.

c: are looking to their waterfront as a way to improve the quality of urban life and attract new businesses and attract

答案选c ，但我认为应该选a ：but one 不是only one 的意思吗？后边定语从句不应该用单数么？

需要指点！！！！

linsonstudy

101. c的意思和A的意思不同，they not be named in the story 是他们没有在story中提到，
      而c的意思才是他们的名字没有在story中使用，也就是有可能有提到他们，只是使用了其
   它名字。