中国石油大学 / 中石油
正确率:100%
12.(2.0分) ___several times about it, but he could not give the correct answer.
A、Being asked
B、Having been asked
C、He would ask
D、 He had been asked
A、Being asked
B、Having been asked
C、He would ask
D、 He had been asked
参考答案:
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