注意：此页面搜索的是所有试题
题目内容
（河南大学-大学英语（一））
[单选题,3.3分] 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
A.to sit
B.is sitting
C.sat
D.sitting
参考答案