When I entered the room, I saw him _____ in a front seat staring at a picture in a strange way.

A.to sit
B.is sitting
C.sat
D.sitting

答案是:


参考答案:D
出自  联大  >  河南师范大学-学前教育(专科)-大学英语I

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本题添加时间:2023/4/3 12:59:00