I wasn't sure if he was really interested or if he___________polite.

2023-05-26

A.was just being
B.will just be
C.had just been
D.would just be

参考答案:A

句意为我不确定他是真的感兴趣还是仅仅出于礼貌。叙述过去的情况且强调说话人的一种语气,应用进行时态。故选A项。

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