中国石油大学 / 中石油
正确率：100%
7.（2.0分） He felt bad for ______ a chance to study abroad.
A、having not given
B、not having given
C、having not been given
D、 not having been give
A、having not given
B、not having given
C、having not been given
D、 not having been give
参考答案：
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