题目信息
The capital gains tax, levied against profits earned on investments, have been being the subject of recent political debate.
A:have been being
B:have been
C:were
D:has been being
E:has been
参考答案及共享解析
共享解析来源为网络权威资源、GMAT高分考生等； 如有疑问，欢迎在评论区提问与讨论
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已选答案：
正确答案：
E:has been
主语是The capital gains tax，所以排除ABC
D选项has been being用法不正确
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题目来源
Manhattan
